By CBS13 Staff

COLUSA (CBS13) – Four people died Sunday afternoon in a helicopter crash in a remote area of Northern California, the Colusa County Sheriff’s Office said.

Authorities said the crash happened at around 1:15 p.m. near Highway 45 at Reservation Road near Colusa. A first responder located the victims at the crash site and officials pronounced them dead at the scene.

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At this time, the identities of the victims are unknown.

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The sheriff’s office said the Federal Aviation Administration and National Transportation Safety Board are leading the investigation.

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This is a developing story. CBS13 will bring you more updates as they become available.