Naked man attacks US bus driver

Pedestrians have filmed a naked man's bizarre and violent efforts to board a bus in broad daylight on a public street.

Passersby screamed for help as the man boarded the bus and began pummelling the driver as he sat in his seat.

He then leaves the bus, walks away, then forces his way through the closed door for another assault on the driver.

"This man is crazy, he even got behind the seat!" witness Deon Lark says in video he filmed and uploaded to YouTube.

He also hit passing cars and urinated in the street.

Police eventually managed to subdue the man and he was taken away on a stretcher.

The bizarre attack took place on Monday in Irvington, New Jersey.