Police took a man into custody after passengers found him asleep on a Beijing subway - completely naked.

A Net user posted a series photos showing the nude man in his 30s sleeping across seats on a Line 10 subway car.

He used his arm to cover his face and fell asleep, the Beijing Morning Post reported.

Some passengers were photographed keeping their distance from the nude commuter while those seated opposite him averted their eyes.

According to the Net user, the man smelled of alcohol.

Police said they were alerted around 8 pm, and arrested the man at the Agricultural Exhibition Hall Station.