The incident occurred around 9 p.m. local time (3 p.m. ET), with police saying they police said they believed the attacker had acted alone.

“Based on the current situation, we assume there is one perpetrator. The police measures in the area are gradually being discontinued. Investigations into the background to the crime are ongoing,” Hamburg police said.

“We found a lifeless person in a community center in #GroßBorstel, which we assume could be a perpetrator. In order to rule out the involvement of other perpetrators, we carry out checks and search extensively,” police added. (ILKHA)