At least six including a police officer and three bystanders were killed and two police wounded in a furious gunfight on Tuesday that filled the streets of Jersey City with the sound of heavy gunfire for hours, authorities said.
The dead included two suspects, Jersey City Police Chief Michael Kelly said, reports CNBC.
The shooting took place at two scenes, starting at a cemetery, where the officer was gunned down, and continuing at a kosher supermarket, where five more bodies were found, Kelly said.
"Our officers were under fire for hours," the chief said.
He would not say exactly what set off the shooting but that he believes the officer who was killed was trying to stop some "bad guys".
City Public Safety Director James Shea said that authorities believe the bloodshed was not an act of terrorism but that it was still under investigation.
Two other officers were wounded but were later released from the hospital, authorities said.
The bullets started flying early in the afternoon in the city of about 270,000 people, situated across the Hudson River from the Statue of Liberty.
The shooting spread fear through the neighborhood, and the nearby Sacred Heart School was put on lockdown as a precaution.