MPs have observed a minute silence for Conservative MP Sir David Amess who was stabbed to death in his constituency on Friday lunchtime.
Boris Johnson is also set to lead a special tribute to fallen MP in the House of Commons later today.
The Prime Minister will make a statement in the Chamber to pay tribute to the Conservative MP, who was killed last week in his Southend West constituency.
MPs from across the chamber are expected to also pay their respects and remember their colleague in a special debate.
And afterwards, the PM and Speaker of the Commons will lead a procession to the nearby St Margaret’s Church in Westminster.
The Commons session began at 2.30pm with Reverend Tricia Hillas, the speaker’s chaplain, leading specially crafted chamber prayers, followed by a minute’s silence.
Home Office questions will still take place afterwards but the rest of the day’s business will be rescheduled.
Stunned MPs returned to Westminster on Monday to lay floral tributes in New Palace Yard, at the gates of the Commons, and also to lift the lid on the level of extreme threats against them for doing their jobs.
The SNP’s Joanna Cherry MP has told how she considered quitting parliament because of the “unrelenting attacks” made against her.
In a Daily Record comment piece she also suggested elected politicians may need to return to dealing with constituents either online or over the phone as they did at the start of the Covid-19 pandemic.
The Labour MP Dame Margaret Hodge, who received 90,000 abusive social media mentions in a two-month period, has said she believed it was important for MPs to remain “strongly connected” to their local community but approach to doing this had evolved over the years.
Downing Street said “everything possible” will be done to ensure MPs can work safely after the murder of Sir David Amess.
Asked if Boris Johnson believes MPs’ security should be tightened, the prime minister’s official spokesperson said: “MP security is something that is always kept under constant review, rightly.
“The review that the Home Secretary commissioned is ongoing so I’m not going to comment ahead of that but of course we will want to do everything possible to make sure MP s are able to carry out their vital work safely.”
A 25-year-old, who is a British national with Somali heritage, named at the weekend as Ali Harbi Ali, is still in police custody suspected of murder following the fatal stabbing.
The suspect was arrested on Friday at a Methodist church in Leigh-on-Sea, Essex, where the MP for Southend West had been meeting constituents.
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