Germany is drawing up plans to withdraw the identity cards of Islamic extremists suspected of planning to travel to Iraq or Syria to join terrorist groups.

Interior Minister Thomas de Maiziere said Friday security officials plan to issue such suspects with a replacement temporary identity card stating in several languages that it doesn't entitle the holder to leave the country.

De Maiziere says it's already possible to withdraw people's passports but officials hadn't previously come up with a way to withhold or mark the plastic identity cards Germans can use to travel to many countries in and beyond the European Union. Details still have to be finalized.

More than 2,000 Europeans, including at least 450 from Germany, have joined the Islamic State group and other extremist organizations in recent years.