Peter Kyle is re-elected with a slightly reduced majority.
Brighton and Hove MPs have written to the Home Secretary to urge him to set up a task force on the rise in violent crime in the city.
The letter to Sajid Javid was written by the Labour MP for Hove and Portslade, Peter Kyle, with the support of the Green Party MP for Brighton Pavilion, Caroline Lucas, and Lloyd Russell-Moyle, the Labour MP for Brighton Kemptown.
Recorded violent crime in Brighton and Hove has risen by 108% since 2011, with more than 5,739 incidents of violence recorded in the first quarter of 2019.
The number of recorded sexual offences and incidents of domestic violence have also increased.
The letter raises "very serious concerns" about this "national emergency playing out on the streets of our constituencies".
The MPs write: "Nothing can be more serious than the security of our constituents and the safety of our streets and communities, and we are urging you to set up a task force on violent crime for Brighton and Hove, as part of a comprehensive strategy both to prevent these crimes from happening and tackle their root causes.”
A man has been arrested on suspicion of criminal damage in connection with a smashed window at Hove MP Peter Kyle's office in the city.
But police say they do not believe the offence was politically motivated.
The Labour MP revealed at the weekend that he had been advised by police to move to a more secure location in the light of his rising profile in the debate on Brexit, and said a window at his premises in Church Road, Hove, had been broken.
Sussex Police said in a statement that a 27-year-old man had been arrested in connection with the incident, in the early hours of Sunday, following "a physical altercation between a group of people".
They said: "During the altercation, a window of a premises at the location was smashed. The broken window is not being treated as a targeted or political incident."
Police said the man was released under investigation and inquiries were continuing.
A Sussex MP has revealed he been advised to move to a more secure location in light of his increased role in the Brexit debate.
Labour MP Peter Kyle revealed the advice he was given by police in a Facebook post in which he appealed for the person or people who smashed a window on his shopfront over the weekend to "come and talk".
Mr Kyle has tabled an amendment offering support for Theresa May's Brexit deal, providing there is a fresh public vote on any deal backed by MPs.
The reason for the smashed window is unknown. Mr Kyle said: "Maybe it was a stupid prank, maybe it was a political message, or who knows it could have been an accident."
But he added: "Several times in recent months I've been asked to consider moving to a more secure location. I can't.
"I can only do this job as I am, and central to that is being totally accessible to everyone throughout our community."
As thousands protested outside Westminster, none were calling for a Norway or Canada style deal, says a Labour MP.
Political editor, BBC South East
The House of Commons will vote on Theresa May's Brexit withdrawal agreement on 11 December, but how will some of our MPs in the South East vote?
Fifteen MPs have suggested they will vote against it:
Damian Collins (Folkestone & Hythe)
Craig Mackinlay (South Thanet)
Maria Caulfield (Lewes)
Rehman Chishti (Gillingham & Rainham)
Henry Smith (Crawley)
Gordon Henderson (Sittingbourne & Sheppey)
Crispin Blunt (Reigate)
Adam Holloway (Gravesham)
Tracey Crouch (Chatham & Aylesford)
Tim Loughton (East Worthing & Shoreham)
Charlie Elphicke (Dover)
Peter Kyle (Hove)
Lloyd Russell-Moyle (Brighton Kemptown)
Rosie Duffield (Canterbury)
Caroline Lucas (Brighton Pavilion)
Ten MPs have said they will vote for it:
Sir Roger Gale (North Thanet)
Amber Rudd (Hastings & Rye)
Greg Clark (Tunbridge Wells)
Huw Merriman (Bexhill & Battle)
Helen Whately (Faversham & Mid Kent)
Damian Green (Ashford)
Kelly Tolhurst (Rochester & Strood)
Sir Nicholas Soames (Mid Sussex)
Helen Grant (Maidstone & The Weald)
Stephen Lloyd (Liberal Democrat/Eastbourne)
Five MPs have not yet made their position clear:
Nusrat Ghani (Wealden)
Sam Gyimah (East Surrey)
Gareth Johnson (Dartford)
Sir Michael Fallon (Sevenoaks)
Tom Tugendhat (Tonbridge & Malling)
Political reporter, BBC Sussex
Nicky Morgan has said she supports a bill from Hove MP Peter Kyle that seeks to give the vote to 16 year olds.
The former education secretary told the BBC it was about time the rest of the UK followed Scotland’s example.
“I’m working with Peter, I support the Bill and I hope it gets the chance to have a greater airing in the House of Commons.
I think it’s important we recognise that 16 and 17 year olds can vote in Scotland now. We’ve kind of breached this argument, and actually, as recent events have shown, votes are about their future and they want to have a say.”
A Labour MP has said that 16 and 17-year-olds would be "the most knowledgeable and the most equipped people" if they were given the chance to vote in elections. Peter Kyle has introduced a bill calling on the voting age to be lowered to 16, under-24s to be automatically enrolled on the electoral register and polling stations to be put in educational establishments, which has its second reading this week. He told The Westminster Hour's John Beesley: "They will be surrounded by people that can answer their questions. They will be in a group of people who are many in number so every single politician is going to be knocking down the door regularly to answer their questions and be accessible to them. I think they would be the most knowledgeable and the most equipped people to make an independent decision about how to vote that there is around."