The federal prosecutors’ office said Thursday that 37-year-old Erol G., whose last name wasn’t released in accordance with German privacy laws, was arrested by Cologne police on Wednesday.

He’s accused of being a member since at least early 2007 of the Turkish Marxist terrorist organization DHKP-C. In addition to raising funds for the group, prosecutors say he distributed propaganda material for it.

DHKP-C is listed as a terrorist organization by the United States and the European Union. It has claimed responsibility for a number of assassinations and bombings in Turkey since the 1970s.