Part of a Warren apartment complex was destroyed after going up in flames early Sunday morning.

The fire broke out at the Hampshire House apartments on 5th Street, off of Tod Avenue, just before 4:00 AM.

Crews battled the fire for close to 2 hours, dousing the flames with a ladder truck. 

According to the Warren Professional Fire Fighters Local 204 Facebook page, multiple firefighters were injured during the blaze. They were treated on scene by EMS.

The Warren fire department tells 21 News there were some civilian injuries as well, but the exact number hasn't been confirmed. The severity of those injuries is also unclear.

So far, no word as to what caused the fire. The State Fire Marshal has been called to investigate.

Stay with 21 News for the latest developments.