Anti-terror raids in Berlin linked to Anis Amri

German police searched nine apartments and other properties in Berlin and the state of Saxony-Anhalt on Thursday morning as part of ongoing investigations into Germany’s Islamist scene in the aftermath of last December’s Christmas market truck attack.

According to a joint statement by Berlin police and state prosecutors, a total of 130 officers were involved in the operation, whose main purpose was to collect evidence, “especially data storage devices,” at the properties. But no arrests were made.

The searches were part of an ongoing investigation into four suspects, aged between 18 and 21, alleged to either be members of the terrorist organization “Islamic State” (IS) or planning a serious terrorist attack.