A man has been arrested after running down a Mount Isa street wearing only his underpants and with exploding fireworks taped to his head.

Police say the unusual show unfolded when they were called to a street in the CBD at about 11:00pm yesterday.

Sergeant Chris McLoughlin said the fireworks were exploding and the man could have posed a public safety risk.

"He had a bicycle helmet strapped to his head and on that helmet he had some duct tape with several boxes of fireworks," Sergeant McLoughlin said.

"Certainly the gentleman was bursting with obvious flair and he was making a bit of a spectacle of himself, but in the end we must take some sort of action and the gentleman's been taken from the roadway."

The 23-year-old man has been charged with public nuisance and is due to appear in court next month.