A Dunedin man armed with a metal scaffolding pole went on a rampage against his colleagues after being told he could not drive a work car, police say.
Senior Sergeant Anthony Bond, of Dunedin, said police were called to Howe St, North Dunedin at 12pm on Friday after a man started to assault his coworkers.
The 21-year-old was told by his workplace he was not allowed to drive the work car, causing him to become "enraged".
He then started to assault his co-workers who were sat inside a scaffolding truck by grabbing a large metal pole to use as a weapon.
He whacked one of his colleagues and smashed two windows of the vehicle.
Police attended and he was arrested.
The man also had a warrant for his arrest, Snr Sgt Bond said.
He was charged with multiple charges and would appear in Dunedin District Court today.