Police in Germany launched an operation after reports that a person had fired several shots at a shop in central Berlin.
A tweet from police did not specify whether anyone was hurt in the incident in the Friedrichstrasse area on Monday.
Police have yet to identify the person responsible.
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A second tweet said police believe the shots were fired during an attempted robbery. Police said they had "the situation under control".
German news agency DPA reported that there was a police operation under way around the former Checkpoint Charlie border crossing between east and west Berlin.
There were no ambulances at the scene, DPA said.
