A group of around 300 German officers called in to help police the visit by US President Barack Obama to the city of Hanover have rejected the accommodation provided to them as filthy and unhygienic, one of the officers said on Sunday.
"It was totally unacceptable," the officer told dpa, describing conditions where there was blood on the mattresses, urine and faeces on the floor and vomit on the walls.
The officers from the neighbouring state of North Rhine-Westphalia were given accommodation in the Linsingen barracks in Hamelin in Lower Saxony, not far from the Hanover trade fair Obama was to visit.
The former military barracks had found use previous to the visit as a reception centre for refugees.
Alternative accommodation was found after some of the officers had distributed photographs of the conditions on social media.
The GdP police union confirmed the situation and said North Rhine-Westphalia Interior Minister Ralf Jaeger had acted to find acceptable accommodation.
Obama's visit has necessitated the deployment of hundreds of additional police officers from other parts of Germany, and the fact that the world's largest trade fair is currently being held in Hanover means that most hotels are fully booked.