A former Kenyan football administrator, Hussein Swaleh, is among the victims who died in Sunday morning crash of Ethiopian Airlines flight ET302, the Confederation of African Football (CAF) has confirmed to the BBC.
The head of Kenya's football federation tweeted that it was a "sad day for football".
Mr Swaleh used to be the Secretary General of Kenya Football Federation (KFF) .
He was heading back to the country having served as CAF's match commissioner in a continental match between Egyptian side Ismailia and DR Congo's TP Mazembe, played on Friday in Cairo, local media report.
More messages of condolences
The UN Secretary-General's Envoy on Youth, tweets:
People gather at the Jomo Kenyatta International Airport in Nairobi, Kenya as they wait for information about the crashed airlineImage caption: People gather at the Jomo Kenyatta International Airport in Nairobi, Kenya as they wait for information about the crashed airline
ReutersCopyright: Reuters
Kenya Airports Authority (KAA) workers hang an information notice of Ethiopian Airlines Flight ET 302, at the Jomo Kenyatta International AirportImage caption: Kenya Airports Authority (KAA) workers hang an information notice of Ethiopian Airlines Flight ET 302, at the Jomo Kenyatta International Airport
EPACopyright: EPA
Relatives talk to airport staff at a help desk set up to give information about the airlineImage caption: Relatives talk to airport staff at a help desk set up to give information about the airline
ReutersCopyright: Reuters
A civilian takes a photograph of the wreckage at the scene of the plane crashImage caption: A civilian takes a photograph of the wreckage at the scene of the plane crash
ReutersCopyright: Reuters
A relative reacts as he leaves the information centre at the Nairobi airportImage caption: A relative reacts as he leaves the information centre at the Nairobi airport
Nigeria's President Muhammadu Buhari has sent his condolences to the victims' families and praised Ethiopian Airlines as "one of the world's most successful and efficient airlines".
Kenyan Premier League football club Sofapaka FC tweets that Hussein Swaleh, the Secretary General of Football Kenya Federation (FKF), was on board flight ET302.
"Our condolences to all those affected and may they find peace at this difficult time."
There were 32 Kenyans killed in the crash, more than any other nationality.
A Nigerian journalist has tweeted that news of the Ethiopian Airlines crashing has brought back sad memories of 1996, when one of the airlines' plane crashed in the Indian Ocean after it was hijacked.
That plane had also been travelling to Nairobi from Addis Ababa.
A spokesman for India's ministry of external affairs, Raveesh Kumar, says its embassy in Addis Ababa is in touch with local authorities and Ethiopian Airlines.
Four Indian citizens were on board the flight when it crashed.
In an updated statement, the plane's manufacturer Boeing said its technical team "will be travelling to the crash site to provide technical assistance".
The team will be under the direction of Ethiopia's Accident Investigation Bureau and the US National Transportation Safety Board.
Live Reporting
Dickens Olewe, Matthew Cannon, Helier Cheung and Toby Luckhurst
All times stated are UK
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An Ethiopian Airlines jet bound for Kenya's capital, Nairobi, crashed shortly after take-off from Addis Ababa, killing all on board.
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The crash happened at 08:44 local time, six minutes after the months-old Boeing 737 Max-8 took off.
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The airline said 149 passengers and eight crew members were on flight ET302
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The victims are from more than 30 countries.
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The Boeing Max-8 aircraft was delivered to Ethiopian Airlines on 15 November last year.
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The cause of the disaster is not yet clear. However, the pilot had reported difficulties and had asked to return to the airport.
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An eyewitness at the scene told the BBC there was an intense fire as the aircraft hit the ground.
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Ethiopian Prime Minister Abiy Ahmed has declared 11 March as day of national mourning.
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AFPCopyright: AFP People gather at the Jomo Kenyatta International Airport in Nairobi, Kenya as they wait for information about the crashed airlineImage caption: People gather at the Jomo Kenyatta International Airport in Nairobi, Kenya as they wait for information about the crashed airline 
ReutersCopyright: Reuters Kenya Airports Authority (KAA) workers hang an information notice of Ethiopian Airlines Flight ET 302, at the Jomo Kenyatta International AirportImage caption: Kenya Airports Authority (KAA) workers hang an information notice of Ethiopian Airlines Flight ET 302, at the Jomo Kenyatta International Airport 
EPACopyright: EPA Relatives talk to airport staff at a help desk set up to give information about the airlineImage caption: Relatives talk to airport staff at a help desk set up to give information about the airline 
ReutersCopyright: Reuters A civilian takes a photograph of the wreckage at the scene of the plane crashImage caption: A civilian takes a photograph of the wreckage at the scene of the plane crash 
ReutersCopyright: Reuters A relative reacts as he leaves the information centre at the Nairobi airportImage caption: A relative reacts as he leaves the information centre at the Nairobi airport View more on twitterView more on twitter View more on twitterView more on twitter View more on twitterView more on twitter 
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Latest PostThat is the end of our live coverage of the Ethiopian Airlines crash
Keep up-to-date with the latest news by listening to the BBC World Service and check our story on the BBC News website.
Here is a recap of what we know so far:
Ethiopian PM declares day of mourning
Ethiopian Prime Minister Abiy Ahmed has declared Monday as a day of national mourning for all the victims of the crash.
He said, in a statement, that the crash will be investigated and "communicated promptly".
Former Kenyan football boss dies
A former Kenyan football administrator, Hussein Swaleh, is among the victims who died in Sunday morning crash of Ethiopian Airlines flight ET302, the Confederation of African Football (CAF) has confirmed to the BBC.
The head of Kenya's football federation tweeted that it was a "sad day for football".
Mr Swaleh used to be the Secretary General of Kenya Football Federation (KFF) .
He was heading back to the country having served as CAF's match commissioner in a continental match between Egyptian side Ismailia and DR Congo's TP Mazembe, played on Friday in Cairo, local media report.
More messages of condolences
The UN Secretary-General's Envoy on Youth, tweets:
An Indian minister tweets his prayers to the victims:
Waiting for news
Tanzania leader sends condolences
Nigeria leader: Airline world's most successful
Nigeria's President Muhammadu Buhari has sent his condolences to the victims' families and praised Ethiopian Airlines as "one of the world's most successful and efficient airlines".
Italian football club sends condolences
Huge crater at crash site
BBC World Service
Emergency teams in Ethiopia are at the site of the plane crash.
A BBC correspondent at the scene says there is a huge crater where the plane hit the ground.
He says metal debris and personal belongings are spread over an area about the size of a football pitch.
The Ethiopian Airlines Boeing 737 crashed shortly after take-off, en route to the Kenyan capital, Nairobi.
World Food Programme staff among the dead
David Beasley, executive director of the World Food Programme, tweets that staff members were on board the Ethiopian Airlines flight.
"We will do all that is humanly possible to help the families at this painful time."
'Kenya working to retrieve bodies'
The Kenyan foreign minister has been tweeting about what the government is doing to assist victims' families.
Kenyan football official killed
Kenyan Premier League football club Sofapaka FC tweets that Hussein Swaleh, the Secretary General of Football Kenya Federation (FKF), was on board flight ET302.
"Our condolences to all those affected and may they find peace at this difficult time."
There were 32 Kenyans killed in the crash, more than any other nationality.
Africa youth forum co-chair among dead
Karim Saafi, co-chair of the African Diaspora Youth Forum in Europe (ADYFE), was one of those killed on the flight.
The entrepreneurship forum posts on Facebook that Saafi was en route to Nairobi to represent ADYFE at a meeting of the African Union in Nairobi.
"Karim's smile, his charming and generous personality, eternal positivity, and his noble contribution... will never be forgotten", the post reads.
Crash brings back sad memories
A Nigerian journalist has tweeted that news of the Ethiopian Airlines crashing has brought back sad memories of 1996, when one of the airlines' plane crashed in the Indian Ocean after it was hijacked.
That plane had also been travelling to Nairobi from Addis Ababa.
India 'in touch with local authorities'
A spokesman for India's ministry of external affairs, Raveesh Kumar, says its embassy in Addis Ababa is in touch with local authorities and Ethiopian Airlines.
Four Indian citizens were on board the flight when it crashed.
Boeing team 'to head to crash site'
In an updated statement, the plane's manufacturer Boeing said its technical team "will be travelling to the crash site to provide technical assistance".
The team will be under the direction of Ethiopia's Accident Investigation Bureau and the US National Transportation Safety Board.
Ugandan president sends 'heartfelt prayers'
Uganda's President Yoweri Museveni tweets his "heartfelt prayers and condolences" to all affected in the crash.
One Ugandan was on board flight ET302.
Aviation expert defends airline's record
An aviation analyst has shared a clip of his interview with Turkish TV station TRT where he defends the safety record of Ethiopian Airlines.
He says that linking the airline's safety record to the 1996 hijacking of its plane which later crashed in the Indian Ocean was "irresponsible".
Zimbabwe leader sends thoughts to victims' families
President Emmerson Mnangagwa says: "Our thoughts and strength go out to our African brothers and sisters."
Victims' families told and investigation launched
In another press release, Ethiopian Airlines says it has "already contacted the families of the victims to inform them of the tragic accident".
It also says the company has teamed up with the Ethiopia's Civil Aviation Authority and Transport Authority to investigate the crash.
"All stakeholders" will take part in the investigation, including the aircraft manufacturer Boeing.