British Prime Minister David Cameron has pledged his support to France, after at least 127 people have been killed in coordinated series of terror attacks in Paris. The attacks on 13 November included suicide bombings at the Stade de France and 87 people being executed at a music venue in the French capital.

Cameron convened a Cobra meeting after the attacks and confirmed that the British terror alert will remain at "severe", meaning an attack is highly likely.

"The events in Paris are the worst act of violence in France since the Second World War, the worst terrorist attack in Europe for a decade," he said. "A horrifying and sickening attack. Our hearts go out to the French people and to all those who lost loved ones. Today the British and French people stand together as we have so often before in our history when confronted by evil. Shocked but resolute, in sorrow but unbowed."

In his statement at Downing Street, the PM also warned that some of the casualties could be British.

"Last night's attack suggests a new degree of planning and coordination and a greater ambition for mass casualty attacks. And we must recognise that however strong we are, however much we prepare, we in the UK face the same threat. That's why we continue to encourage the public to remain vigilant and we will do all we can to support our police and intelligence agencies with the resources and the capabilities they need," Cameron added.

Leader of the opposition Jeremy Corbyn has also sent condolences to France, saying the Paris attacks were an attack on "all of us". Islamic State (Isis) have claimed responsibility for the attacks.