A boy was killed and a woman was wounded when a fight broke out Saturday at a birthday party at a banquet hall in Fairfield and someone fired a single shot, police said.

About 10:30 p.m., Fairfield police received several 911 calls from people reporting gunshots at the banquet hall at Calvin United Church on Kings Highway East near Hibiscus Street, according to the Fairfield Police Department.

When officers arrived they found a boy who was unresponsive laying in a hallway and immediately started trying to revive him. He was rushed by ambulance to Saint Vincent’s Medical Center, where he died, police said.

Police said the boy was a juvenile but did not provide his age.

Shortly after, a woman showed up to the hospital with a gunshot wound to her jaw, police said.

Investigators learned that a person who wasn’t a member of the church and wasn’t a resident of Fairfield had rented out the banquet hall for a birthday party for a 13-year-old, according to multiple media reports. During the party, a fight broke out and one person — who knew the boy that died — fired one bullet that struck both people who were shot, police said.

The shooter then fled from the party and — having heard the gunshot — many of the party-goers rushed out of the banquet hall. At least three of them got hurt while fleeing the shooting scene, police said.

The Connecticut State Police, Westport, Stratford, and Easton police were all called to the scene to help with crowd control as officers from Fairfield secured the crime scene.

The woman’s condition was stabilized, and she was later released from the hospital, police said.

The Fairfield Police Detective Bureau and the Connecticut State Police Western District Major Crimes Squad were investigating the shooting.

The department expressed its condolences to the loved ones of the boy who was killed. He had not yet been identified.

“Our department sends its deepest condolences to the family for this senseless loss of life,” the police department said in a statement issued Sunday.