Police are looking into a number of online threats made to MPs following a vote on whether to extend airstrikes against the so-called Islamic State into Syria.
A number of Labour MPs said they had received death threats and abuse via social media and -email over their vote.
They varied from being so abusive I can't possibly repeat them to just the usual abuse warmonger, killer of babies, blood on your hands.
Labour backbencher Stella Creasy said her staff were facing abuse during the debate on the airstrikes in Syria on Wednesday.
For Christ's sake - I want to listen to debate in chamber but people ringing my office abusing my staff so dipping out to check ok!".
One tweet read: "Hilary Benn will never walk the streets of Leeds unprotected again. #criminal #Tory"
Others messaged the shadow foreign secretary to tell him he had let his father Tony Benn down and that he had betrayed his party with the pro-bombing speech.
John Mann said he was on the receiving end of abuse despite making clear he will vote against bombing, blaming inaccurate lists of supposed rebels being circulated among opponents of air strikes.
It is deliberate bullying. I have received tweets and emails, some are random but some seem to be orchestrated by groups both inside and outside the party.
John McDonnell, the Shadow Chancellor
I had a death threat for not voting for the war.