British Prime Minister David Cameron said a counter-terrorism bill to be introduced soon could stop jihadists from coming home to Britain.
Cameron said Friday in Australia the legislation is aimed at preventing terror suspects from traveling, including canceling their passports while they are overseas.
"We must ban extremist preachers from our countries. We must root out extremism from our schools, universities and prisons," he said.
The British prime minister’s remarks came in an address to the Australian Parliament in Canberra. Cameron is on his way to Brisbane for the Group of 20 Leaders summit.
Britain is also focused on what Cameron termed the "new and pressing challenge" of getting extremist material taken down from the Internet.
"In the UK we are pushing companies to do more, including strengthening filters, improving reporting mechanisms and being more proactive in taking down this harmful material. We're making progress but there is further to go. This is their social responsibility, and we expect them to live up to it," said Cameron.
Britain's security threat level was raised to its second-highest level in August due to the risks posed by Islamic State fighters returning from Iraq and Syria.
The United States is pushing for the United Nations to adopt international standards to deal with foreign fighters in Middle East conflicts and the threat they could pose when they return to their home countries.