David Cameron has reassured Jewish leaders of Britain's ability to protect the community following the terror attacks in Paris.

At a meeting in Downing Street this morning he told them the government was doing everything possible to ensure organisations and charities were properly engaged with police and security services.

"We have to recognise that in a modern democracy you can never protect every threat, but we should do everything we can and be as vigilant as we can to help reassure," Mr Cameron said.

He said Britain's security services were very capable but accepted that there was always more to learn in terms of tackling the threat posed by extremists.

Mr Cameron said it had been a moving experience to be in Paris on Sunday for the solidarity marches and recalled seeing signs reading "JeSuisJuif" in the crowds.

"We should use the momentum of those great demonstrations to emphasise what we are in this country: a very successful multi-ethnic, multi-faith democracy."

Among the members of the Jewish delegation attending the annual meeting with the Prime Minister were Jewish Leadership Council chairman Mick Davis, Community Security Trust chairman Gerald Ronson and Board of Deputies president Vivian Wineman.

The meeting also discussed rising antisemitism in Britain, anti-Israel boycotts on university campuses, and the situation in the Middle East.