Turkey protests: Two killed in Istanbul clashes
Two people have died of their injuries after Turkish police clashed with protesters in Istanbul on Thursday.
One man, named as Ugur Kurt, 30, was shot in the head. Police said he was not involved in the protests.
A second man, who has not been named, died of wounds from a fragmentation grenade, the governor of Istanbul said.
Prime Minister Erdogan's decade-long rule has come under pressure since nationwide anti-government protests broke out in Istanbul a year ago.
Police used tear gas and water cannon and fired live bullets into the air to try to disperse a crowd angry at last week's mining disaster that killed 301 people.
Mr Kurt was taken to hospital but doctors were unable to save him.
His death prompted demonstrations lasting until late into the night. Eight people were injured.
The BBC's Selin Girit, in Istanbul, says a picture of a wounded man lying in the street has gone viral on social networking sites in Turkey, with people posting the same word alongside it: "Enough."
The disturbances began when about a dozen people began chanting slogans about a youth killed in previous clashes with police and the Soma mine disaster.
Police fired tear gas and water cannon at the group in the Okmeydani district of central Istanbul, who responded by throwing rocks and petrol bombs.
Video footage shown on Turkish television news channels shows Ugur Kurt collapsing to the ground in a pool of blood.
He was reported to have been attending a funeral inside the complex of a cemevi, the house of worship for Turkey's Alevi religious minority, close to the protests.
Around 400 demonstrators staged a sit-in outside the hospital where Mr Kurt died, chanting: "Murderer state has taken another life."
Deputy Prime Minister Bulent Arinc said prosecutors would investigate.
"If one of our citizens, who has nothing to do with the events, is injured by a stray bullet fired by a policeman, I would like to see anyone who is involved in this incident immediately be brought to account," Mr Arinc said.
A 15-year-old boy, Berkin Elvan, died in March after nine months in a coma from a head wound he suffered as he went to buy bread during an anti-government protest in Okmeydani.
Thousands clashed with police in Istanbul when he was buried.