Jihadists have issued threats to London's safety after a spate of horrific terror attacks hit Europe.
Images threatening atrocities in London and other capital cities have been widely posted on a jihadi messaging app, according to analysts tracking extremist activity online for SITE Intelligence Group.
The threats came only hours after Islamic State fanatics brutally murdered 86-year-old French priest Jacques Hamel in Normandy on camera.
Scotland Yard also advised the capital’s churches to review their security arrangements amid fears of a similar attack.
Murdered on camera: Jacques Hamel AFP/Getty ImagesMetropolitan Police Deputy Assistant Commissioner Neil Basu said: “Following recent events in France, we are reiterating our protective security advice to Christian places of worship and have circulated specific advice today.
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“We are also taking this opportunity to remind them to review their security arrangements as a precaution.
“While the threat from terrorism remains unchanged at severe, we urge the public to be vigilant.”
Mr Basu added that there was no specific intelligence relating to attacks on the Christian community in the UK.
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Security service MI5 has set the country’s terror attack threat level at severe, meaning it believes an attack is “highly likely”.
IS terrorists have claimed responsibility for a lorry driver who killed 84 people in Nice, the suicide bombing incident in Ansbach, Germany and an axe attack on a train in southern Germany, all in the past month.