Authorities say more than 100,000 chickens died in a fire that destroyed a barn at a commercial egg farm in Tyrone Township.
The blaze at Hillandale Farms was reported around 5:45 a.m. Saturday. Tyrone is about 29 miles southwest of Harrisburg.
A Heidlersburg Fire Company captain said flames were visible above the roof of the 600-foot barn by the time fire crews arrived.
Firefighters concentrated on keeping the blaze from spreading to other buildings. Three first responders were treated at the scene, two for dehydration and one for a laceration.
The fire chief said adjacent chicken houses were undamaged and the animals unharmed. The burned building was destroyed.
Officials said the cause of the fire is still under investigation. It's believed to have been accidental.