A St John spokesperson said ambulance officers were responding to the incident but would not give details, deferring comment to police.
A man who was working on Norton Rd at the time of the incident said he heard what sounded like a gunshot, shortly after he said a vehicle with “two big men” showed up and he saw them run down a driveway towards a home.
He said a distressed man came over from the property to his workplace and he and another worker helped to calm him down.
He said the distressed man was later taken away by police. The man did not have any injuries, he said.
An eyewitness and a resident of Kent St has described seeing a car full of Mongrel Mob gang members being chased by multiple police cars before it crashed into a house on Norton Rd.
“A mob member has then got out of the car and entered someone’s house.
“Another walked out on foot holding a shotgun, police have just told us.”
They said the businesses on the road have had to close and homes on an adjacent street were being evacuated.