Four adults were killed and a fifth was injured in an early morningshooting at a house partyin Inglewood, Calif., on Sunday, authorities say.

Inglewood Mayor James T. Butts described the incident to KABC as a “targeted ambush.”

Two men and two women have died after shooters allegedly opened fire at a home on Park Avenue around 1:30 a.m. local time, according to CBS Los Angeles.

CBS Los Angeles/Youtube

4 Killed, 1 Injured in Calif. House Shooting: ‘Worst Act of Violence’ in Years, Says Mayor

The fifth victim, who is male, is expected to survive his injuries and has admitted to being gang-affiliated, per the outlet. He also reportedly described the incident as an “ambush,” though it is unclear who the target was.

PEOPLE has reached out to local authorities for comment.

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4 Killed, 1 Injured in Calif. House Shooting: ‘Worst Act of Violence’ in Years, Says Mayor

Mayor Butts said in a Sunday news conference thatat least two weapons, an assault rifle and a handgun, were used during the attack. He said the incident involved the highest number of shooting victims the city has seen since the 1990s.

“This is a tragic loss for the families [involved],” he told reporters. He later called the shooters as “sociopathic killers that have to be sequestered from society” before directing his message to the suspects at large.

“Turn yourselves in,” Butts said. “We will find you and we will prosecute you.”

Officials have not provided any information about potential suspects or released the identities of the victims.

source: people.com