91¸£ÀûÉç

The head of Germany's security service has told the 91¸£ÀûÉç that the attacks on Paris are just the beginning of a "terrorist world war".

"We are very concerned that people who fled IS are falling into the hands of Islamists," Hans-Georg Maassen told the 91¸£ÀûÉç's Berlin correspondent Jenny Hill.

"IS is looking at Europe as a single enemy," he said.