A 76-year-old woman who celebrated her birthday with a cocaine bash has been ordered to close her Berlin bar.

German police say the woman was arrested late on Thursday evening (local time) and held in custody.

They raided the bar after receiving a tip-off that the illegal drug was being passed around.

Inside, they found many of the patrons under the influence of cocaine, which they believed was supplied by the owner.

The woman was previously arrested late last month after police found 35 grams of cocaine in her bar and her apartment.

She had been bailed for that offence less than a week earlier.

This time her bar was ordered closed, police said.

The woman's name has not been released.