(CNN) - A man carrying a metal hatchet charged at four New York police officers Thursday afternoon, hitting one officer in the right arm and another in the head, the city's police commissioner said.
The two officers who were not struck by the suspect shot and killed him. He has not been identified by name, but is believed to be about 32-years-old, according to police Commissioner Bill Bratton
The police officer who was struck in the head remains in critical but stable condition.
Authorities are looking to see if the unprovoked attack, in the New York borough of Queens, is tied to recent calls by radicals to attack military and police officers, law enforcement officials say.