WICHITA, Kan. (AP) — Wichita fire investigators say arson is the likely cause of a store fire that caused about $400,000 in damages and injured two firefighters.

The Wichita Eagle reports  investigators are looking for three juveniles who may have started the fire that heavily damaged the Dollar General on Tuesday.

Fire Marshal Brad Crisp says one firefighter was treated for dehydration and the other for injuries sustained when he was hit by falling debris. Both firefighters have been released from the hospital.

Crisp says investigators have been told three juveniles were in the store a short time before the fire and were asked to leave because of a disturbance. He says they reportedly returned to the store a short time later.