German police said on Friday they had arrested two people following a raid on 11 properties linked to radical Islamic Salafists, shortly after Belgian police killed two men during similar raids against a group.
The arrests followed investigations, which have been going on for several months into five Turkish citizens aged 31 to 44, who are suspected of "preparing a serious act of violence against the state in Syria" and money laundering, police said.
Some 250 police officers took part in the raid in Berlin.
Police said there were no indications that the group had been planning attacks in Germany.
