Two Federal Way police officers opened fire on a knife-wielding assailant Saturday while other officers helped his family members escape what started as a domestic violence call, according to police.

The alleged assailant, a 21-year-old Hispanic man, was killed.

In a statement released Saturday night, Federal Way Police Department spokesman Stan McCall said officers responded to a domestic violence call at a mobile home park in the 3000 block of South 288th Street at about 5:40 p.m. The incident reportedly involved two brothers, one armed with a knife, as well as other family members who had locked themselves in a room and feared for their safety.

“After officers arrived, they assisted family members as they escaped out through a window,” McCall said in the statement.

The suspect “was armed with knives when he confronted police officers, who were outside in containment positions. The assailant made a statement about wanting to die, and then he moved toward the officers. Two officers responded simultaneously by firing their weapons. Medics pronounced the assailant dead at the scene.”

As is standard procedure, the two officers who fired their weapons were both placed on administrative leave pending the outcome of an investigation.