NEW JERSEY—Two gunmen opened fire in Jersey City, New Jersey on Tuesday, December 10, leaving a total of six dead, including a veteran police officer.

At approximately 12:30 p.m. on Tuesday, law enforcement received calls of a shooting at a local kosher market in Jersey City. Police Chief Michael Kelly stated in a media briefing that authorities learned of their fellow officer being shot at Bay View Cemetery, approximately one mile from the Jersey City shooting.

Chief Kelly believes the shootings started when slain officer, Detective Joseph Seals, 40, approached one of the two gunmen at a nearby cemetery in connection to a homicide investigation he was conducting. Detective Seals was fatally shot. Both gunmen fled the scene in a truck and headed toward the kosher market in Jersey City, where they opened fire on other officers who were attending to the radio call. Civilians were caught in the gunfire.

In addition to Detective Seals, three victims inside the deli were fatally wounded. Both suspects, who have been identified as David Anderson, 47, and Francine Graham, 50, were also killed in the exchange of gunfire with officers.

Officers Ray Sanchez and Mariela Fernandez, were wounded during the incident, including suffering injuries to the shoulder. Both are expected to make a full recovery.

Twelve public schools near the shooting were placed on lockdown. Schools in neighboring Bayonne, New Jersey were also ordered to take shelter in place to ensure the safety of the students. Officers in Jersey City were seen rushing to knock on doors, assisting residents and business owners in order to get them to safety.

Steven Fulop, the Mayor of Jersey City tweeted:

“Based on our initial investigation [which is ongoing] we now believe the active shooters targeted the location they attacked. Due to an excess of caution the community may see additional police resources in the days/weeks ahead. We have no indication there are any further threats.”

The names of the victims have not been released to the public. Detective Seals was a longtime veteran with the Jersey City Police Department for 15 years. He is survived by his wife and five children.