Six people were brought to the hospital after a man wielding a butcher knife threatened to stab a bus driver and tried to slash tires at a Boston transit station on Friday before being taken into custody, authorities said.

Among those injured were two transit officers, a Boston police officer and the suspect in the case, said Richard Sullivan, superintendent of police for the Massachusetts Bay transportation authority. Sullivan, who briefed reporters at a news conference, said he wasn’t aware of the other two reported as injured by Boston’s emergency medical services agency.

Sullivan said transit officers acted quickly after receiving a radio call about the butcher knife-wielding man at the Forest Hills station late Friday morning. A struggle ensued, during which the suspect tried to grab an officer’s gun, he said. The gun went off, but no one was shot or stabbed.

“This was a violent person armed with a butcher knife,” Sullivan said. “These officers, without hesitation, immediately rushed to the danger while other people were running away from it.”

The incident drew multiple police cars and ambulances to the station, which includes bus, train and subway stops in the city’s Jamaica Plain neighbourhood. The facility’s upper busway was shut down at about 11.15am, with service rerouted to another section.