The increased terror risk facing Britain may not include a specific threat to Jewish targets, but the community must be more alert than ever before, security experts have warned.

The Community Security Trust said it was aware of fears among British Jews that a series of attacks on Jewish communities abroad - including last week's synagogue murders in Jerusalem - could be replicated here.

CST chief executive David Delew stressed that the charity had seen "no specific intelligence relating to an actual anti-Jewish terror attack or target".

But he said: "We need Jewish communities to continue working with us, providing co-operation, personnel and resources so that together we can meet the growing challenge."

Home Secretary Theresa May outlined plans on Monday to give police and security services greater powers to combat the terror threat. She made specific reference to the attack in May at Brussels' Jewish museum and warned an attack on Britain was "highly likely".

Mr Delew said: "We can all see how government and police have spoken about the scale of the terrorist threat to Britain, and we know that antisemitism is central to the jihadist worldview."

Security experts said the severity of Mrs May's concern suggested the public was being prepared for the "inevitability" of an attack in this country.

The JC understands there has been a sizeable increase in people volunteering to help CST's work in the past three months in response to the threat.