AT LEAST ONE person is dead and three have been injured in a shooting near a polling station in Azusa, California.

Los Angeles County Fire Inspector Gustavo Medina says one person was dead on arrival, two people were airlifted to hospitals and a fourth was being treated. He was unable to say whether the four people had been shot.

Local reports suggest a shooter with a “high-powered rifle” is active in the area.

An elementary school that’s also a polling place was on lockdown.

CBSLA reports that the shooter opened fire on police, but that no officers were injured.

The station adds that Azusa police Officer Jerry Willison said officers “were met with gunfire at the scene” and became “pinned down” by gunfire.

Azusa police Officer Jerry Willison says someone fired on officers at the scene, but none of them were hurt. He says the officers had to seek cover.

He also was unable to say whether those injured had been shot.

He says no arrests have been made.

Azusa Police have told all locals to remain in shelter in the area, including those who had been attempting to vote in today’s US elections.

Azusa is a city just outside Los Angeles.