'These attacks can happen anywhere,' David Cameron warns after terror in Tunisia, France and Kuwait

Isis has claimed responsibility for a mosque bombing in Kuwait today and the group's flags were placed next to a decapitated man's head in France

David Cameron said the world must show 'solidarity' to combat extremism (AP)

David Cameron has warned that the terrorist attacks that killed dozens of people in Tunisia, France and Kuwait today “can happen anywhere”.

Speaking at the end of a European Council summit in Brussels, the Prime Minister urged the world to pull together to fight the “evil of terrorism”.

"This is a threat that faces all of us. These events have taken place today in Tunisia and in France but they can happen anywhere,” he added.

"We have got to do all we can to help. That means co-operating on counter-terrorism, building our capacity on counter-terrorism, it means dealing with the threat at source whether that is Isil (Isis) in Syria and Iraq, or whether it is other extremist groups around the world.

"Perhaps more important than anything is this poisonous, radical narrative that is turning so many young minds. We have to combat it with everything we have."

Mr Cameron said he had spoken to French president Francois Hollande to offer his support following the attack in Saint-Quentin-Fallavier and would also speak to the Tunisian government in the wake of shootings at two hotels.

A man was decapitated today in France and his head displayed on a fence surrounded by Isis flags by an attacker who attempted to blow up the Air Products factory.

In Tunisia, at least 27 people were killed when two gunmen opened fire at a beach resort in Sousse. British and German tourists were believed to be among the dead.

Isis claimed responsibility for the bombing of a Shia mosque in Kuwait that killed at least 13 people and al-Shabaab extremists also stormed a military base in Somalia.

Mr Cameron announced an emergency meeting of the Government’s emergency Cobra committee this afternoon to discuss Britain’s response and how it can further co-operation with other countries.

A man speaks on the phone in the wake of the Kuwait mosque bombing

He said that the West must stop “the poisoning of young minds” by Isis and other extremists.

“The people who do these things, they sometimes claim they do it in the name of Islam,” the Prime Minister added.

“They don't. Islam is a religion of peace. They do it in the name of a twisted and perverted ideology that we have to confront with everything that we have.

"We must stop the poisoning of these young minds in our country, in other European countries, and around the world."