German police said officers were at the scene of a hostage situation in the western German city of Karlsruhe on Friday but that there was no danger to the broader public.
The incident follows Thursday's deadly rampage at a Jehovah's Witnesses hall in Hamburg, putting the country on edge. Gun violence is rare in Germany.
Police in Karlsruhe cordoned off an area in the central part of the city and urged residents to avoid the area.
