A police operation is underway at a supermarket in the Marienfeld district of the German capital, where a man has taken a woman hostage, according to a police statement.
Authorities said they made contact with the man at the Rewe Supermarket.
Footage posted on social media showed armed police officers in protective gear at the entrance of the supermarket.
Police said the operation began at around 10 pm local time (0800 UTC).
Spectators gathered nearby, and several police and emergency vehicles could be seen on the road.
It appears that a portion of the road has been cordoned off. A video also showed a police officer climbing a ladder along the wall of the building and looking inside the supermarket.
There will be more to come on dw.com as this breaking news develops.