NEW YORK, Sept 16, (AP): Four people were wounded at a Brooklyn subway station Sunday when police officers shot a man threatening them with a knife, and inadvertently sprayed bullets that hit passengers, authorities said. The people struck by gunfire included two innocent bystanders, one of the officers and the man with the blade, who the police initially confronted because he hadn't paid his fare, officials said.

One of the passengers, a 49-year-old man, was hospitalized in critical condition after a bullet passed into an adjoining subway car and struck his head. A video posted by a passenger showed upset passengers fleeing, police running to help the injured and the wounded officer suddenly realizing he had also been struck by a bullet.

Interim Police Commissioner Thomas Donlan, who was only appointed to his position Friday, promised a thorough investigation, but cast blame for the incident on the man accused of brandishing the knife. "We will be working through the timeline of today, but make no mistake, the events that occurred on the Sutter Avenue station platform are the results of an armed perpetrator who was confronted by our officers doing the job we asked them to do," Donlon said.

The shooting happened a little after 3 p.m. when two officers followed a man up the station steps to an elevated platform after seeing him enter without paying, Chief of Department Jeffrey Maddrey said. The officers told the man to stop, but he refused, muttering "I’m going to kill you if you don’t stop following me,” Maddrey said. In the course of the encounter, the officers noticed the man had a knife, Maddrey said. They followed him onto a train that had pulled into the station and fired two Tasers, but neither incapacitated the man, Maddrey said.