A Tory MP has been stabbed multiple times while attending a constituency meeting at church, according to reports.
David Amess was reportedly stabbed during a visit to the Belfairs Methodist Church in Leigh-on-Sea in Essex earlier this afternoon.
A man has now been arrested over the attack as cops say they are not looking for anyone else in relation to the incident.
The MP for Southend West is believed to be receiving treatment from paramedics at the scene.
There is now a large police presence in the area with armed cops on the scene as well.
Essex Police said: A man's been arrested following an incident in #LeighonSea.
"We were called to reports of a stabbing in Eastwood Rd North shortly after 12.05pm.
"A man was arrested shortly after & we're not looking for anyone else."
A spokesman for his office in Westminster said: "The incident has happened. I don't know what the incident is. We are still waiting."
An employee of Jean's Laundry, near Belfair's Methodist Church in Eastwood Road, said she did not know anything about the situation but had seen emergency service vehicles go by.
"We just saw all the police and the ambulances turning up, it was probably about half past 12 or just before then," she told the PA news agency.
"I saw about two or three ambulances and then an undercover police car and other police cars going past.
"There's usually people walking past, elderly people walking to the shops. We've still got no idea what's going on, we're not very busy on a Friday and no one has come in to talk to us about it."
Labour Party leader Sir Keir Starmer tweeted: "Horrific and deeply shocking news.
"Thinking of David, his family and his staff."
Labour MP Stephen Timms who was stabbed while in his constituency tweeted: "Appalled to hear of the attack on @amessd_southend today.
"I know him well and am thinking of him with very best wishes as we await further news."
Media opportunities to film the start of a Cabinet meeting on Friday have been cancelled, as was a planned interview with Prime Minister Boris Johnson, which was due to take place afterwards.
It is unclear whether the Cabinet meeting is going ahead.
Essex Police said anyone with information should contact the force quoting incident 445 of 15 October.
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