Senior German politicians allegedly tried to pressure police in Cologne to remove the word rape from reports about the mass sexual assaults committed by asylum seekers on New Year's Eve.
The former Cologne police chief was removed from his post in January after it emerged the police had covered up the scale and seriousness of the assaults.
At the time it was believed police initiated the cover-up over concerns most of the perpetrators were foreign nationals.
Now Cologne's Express newspaper has published a leaked police memo which it claims shows that the cover-up went much higher than previously thought, and was ordered by the state government of North Rhine-Westphalia.
The new allegations have left Ralf Jäger, the state's interior minister, facing calls for his resignation. According to the memo one officer received a phone call from the ministry asking him to tone down the report. About 600 women were victims of sexual assault around Cologne main railway station on New Year's Eve, according to an official report.