About three weeks ago, a 64-year-old man collapsed during a police operation in Berlin - he died in the hospital on Thursday.
A police spokeswoman confirmed the death of the mentally ill black man in the Charité University Clinic on Friday morning.
In a press release on Thursday evening, the Berlin victim counseling center Reachout accuses the police of using "massive brutal force" during the operation and of being responsible for the death.
She also speaks of racism.
The police are investigating the officers involved.
The man's body is to be autopsied.
According to the police, the man was to be transferred to a psychiatric hospital on September 14 from a residential home for the mentally and mentally ill in Berlin-Spandau.
A court ordered it.
The man put up "massive resistance", he was handcuffed, finally he collapsed in the presence of an ambulance and his supervisor and was taken to a hospital.
Reachout wrote that police officers pinned the man to the ground and that a police officer put a knee on his neck.
He bled.
Finally he stopped breathing.
CPR took more than 20 minutes.
He later fell into a coma.