COFFEYVILLE, Kan. (AP) — Firefighters in Coffeyville rescued three unconscious people from a house fire but one didn’t survive.

KSN-TV reports firefighters were called to the house fire just after 3 a.m. Saturday and found heavy flames coming from the second floor.

Firefighters used a ladder to rescue three unconscious people from a second-story window. All were taken to a Coffeyville hospital, and authorities say one person died.

The conditions of the other victims weren’t available.

Officials from several agencies are investigating the cause of the fire.