Police say the shooting may have been part of a murder-for-hire plot targeting one person, who was killed.

At least four people have been killed and 18 injured in a mass shooting in Birmingham, Alabama, police say.

“Multiple shooters fired multiple shots on a group of people” late on Saturday in the Five Points South area of the city, Birmingham police officer Truman Fitzgerald said.

Officers found the bodies of two men and one woman at the scene, while a third man later died of bullet wounds in hospital, Birmingham Police said.