A man was shot and killed when he tried to break up a fight while attending a barbecue at a Brooklyn park, police sources said.

The victim, a Philadelphia resident, was visiting family in Brooklyn when he was shot through the head after the melee erupted at Kaiser Park in Coney Island, sources said.

The victim, believed to be in his 50s, tried to get in between two groups of women before an unknown gunman shot him just after midnight.

Police are still hunting for the killer.