FREEPORT, N.Y. (CBSNewYork)Nassau County police are searching for a gunman after a man was killed and a teenager was seriously hurt in a shooting at a park in Freeport.

It happened at Martin Luther King, Jr. Park around 4:30 p.m. Saturday, but detectives were back Sunday morning searching for evidence, CBS2’s Christina Fan reported.

Police responded to the scene of a deadly shooting at Martin Luther King, Jr. Park in Freeport, NY. (credit: CBS2)

Police responding to the 911 call found the two injured victims.

Paramedics rushed a 21-year-old man to the hospital, but he died from his injuries. A 19-year-old was hospitalized and listed in stable condition.

Officials did not release the victims’ names.

A neighbor said they heard the shots and then found the victims.

“One laying down, the other cradling him, and he was saying, ‘Ma, he’s not breathing. I need help.’ I tried to reassure him the police are coming,” the neighbor said.

A group of people were seen running away after the shooting. Police reportedly tried to get fingerprints off cars in the area the suspects may have touched as they ran off.

Anyone with information is asked to call Nassau County Crime Stoppers at 1-800-244-TIPS (8477). All callers remain anonymous.