Berlin police say an officer has discharged his gun near the German capital's cathedral, slighting injuring a man.
Finally, they faced the assailant near the altar of the cathedral, and "the man was wounded in the leg by a shot from a policeman", a spokesman said.
The DPA news agency reported that some witnesses had been traumatised and were taken away for psychological counselling.
"There are no grounds to assume that the incident had a terror or an Islamist motive", the police wrote on Twitter.
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Your contrived photo ops are absurd", another added: "How lucky that you get to do that with your children. They should not be thrown in jail and separated from the very children they are trying to save.
About 100 people were visiting the cathedral at the time of the incident and had been evacuated by staff by the time two police officers arrived at the scene.
Police have said the suspect is a 53-year-old man, and that there is no reason to believe the attack was related to terrorism. The second officer also was inadvertently wounded by the shot or shots fired by his colleague.
One of the officers then opened fire, wounding the man.
The elaborate 19th Century church is located in the centre of Berlin on the historic Museum Island and is one of the city's top tourist attractions.