Sir David Amess has died after being stabbed “multiple times”, Essex Police said.
The 69-year-old victim, who has been an MP since 1983, was fatally injured at Belfairs Methodist Church in Leigh-on-Sea in Essex midday on Friday.
A man was arrested after the Conservative MP was stabbed several times during a “very distressing” incident at his constituency surgery in Essex.
Police said they are not looking for any other suspects, and praised members of the public for their response after the incident.
In a further statement on Friday afternoon, Essex Police said: “A man has been arrested on suspicion murder after a man was stabbed in Leigh-on-Sea.
“We were called to an address in Eastwood Road North shortly after 12.05pm today (Friday 15 October).
“We attended and found a man injured. He was treated by emergency services but, sadly, died at the scene.
“A 25 year-old man was quickly arrested after officers arrived at the scene on suspicion of murder and a knife was recovered. He is currently in custody.
“We are not looking for anyone else in connection with this incident.”
The father-of-five is the second sitting MP to be killed in such circumstances in five years, following the death of Labour MP Jo Cox in 2016 as she attended a constituency surgery.
Witness Anthony Finch described seeing someone being taken out of the building and put into the back of a police car.
He told Sky News: “We arrived to do some work on the adjacent building… and at the point when I was crossing the road I saw an upset lady on the phone saying ‘you need to arrive quickly, he’s still in the building’.
“There were loads of armed police, overhead there was an air ambulance as well as a police helicopter. Obviously wondered what the hell was going on, you don’t often see armed police around the local area.
“I saw the suspect get put into a police van, get taken away and then they cordoned the whole road and pushed us all down the road.
“What we then heard was that it was David Amess.”
He told LBC: “It’s very odd and it’s very distressing, that’s for sure.”
Councillor John Lamb, who is at the scene, told the PA news agency: “He’s a family man, he’s got four daughters and a son.
“He’s always trying to help people and especially refugees he’s tried to help.
“He’s a very amicable person and he does stick by his guns, he says what he believes and he sticks by it.”
Aerial footage showed multiple police officers outside the church and an air ambulance at the scene.
A large cordon extended down Eastwood Road, with members of the public gathering behind it, and multiple side streets closed off.
The Scottish first minister Nicola Sturgeon has said: “Elected representatives from across the political spectrum will be united in sadness and shock today. In a democracy, politicians must be accessible and open to scrutiny, but no-one deserves to have their life taken while working for and representing their constituents.”
Liberal Democrat leader Sir Ed Davey said: “This is tragic and horrible news. My thoughts are with David’s wife and children, the wider family, friends and David’s community. A truly terrible day for British politics but most importantly of all our prayers are with all the people who loved David.”