The Los Angeles County Sheriff’s Department’s fatal shooting of a man in Paramount Sunday night was preceded by a domestic argument between father and son, officials said.

Deputies responded to the 8400 block of Quimby Street just after 9 p.m., and on scene, a man told officials that he’d been punched in the face by his 30-year-old son after a verbal argument, the LASD said in a news release.

In the backyard, deputies located the son, whose identity has not been released, and found he was “armed with one pair of scissors approximately 8 inches in total length,” the release said.

Los Angeles County deputies shoot, kill person

The younger man “immediately and aggressively advanced toward deputy personnel” despite the use of a less-lethal stun gun, prompting at least one deputy to open fire and strike the man at least once.

He was pronounced dead at the scene.