German charged as member of Syria insurgent group

German prosecutors have filed terrorism charges against a man accused of joining and fighting in Syria for a hard-line Islamic group that has since overrun parts of Iraq.

Federal prosecutors said Tuesday that the 20-year-old, identified only as Kreshnik B. in line with German privacy rules, was charged with membership in the Islamic State of Iraq and the Levant, which they say he joined in July. He's also charged with conspiring to commit an attack because he is accused of undergoing weapons training, acquiring a firearm and participating in fighting in Syria.

The suspect was arrested in December after he returned to Germany.

Germany and other European countries are increasingly worried about the possible security threat posed by radicalized citizens returning from Syria and Iraq.