Fire destroyed an arena on Grassy Narrows First Nation Saturday night. The community is about one hour north of Kenora.

The deputy fire chief told CTV the fire broke out in the middle of the night.

People on the First Nation say they're upset because a lot of time and money has gone in to the building. They say there's nothing left to salvage from it.

The cause of the fire is under investigation. A volunteer clean-up is being organized so they can re-build as quickly as possible.