BIDDEFORD, Maine (AP) — Officials say a Maine fire captain broke a bone in his back and two other firefighters were injured when a set of stairs collapsed during a rescue call.

Biddeford Fire Chief Joseph Warren said five firefighters were called to a Bacon Street apartment Monday night following a report of an unconscious person.

Warren said the patient had just been carried to ground level when a set of stairs with three firefighters on it pulled free from the landing outside the entry door, falling about 10 feet.

Officials say the porch appeared to be in good shape, but that weather had degraded it over time.

Warren would not release the patient’s medical condition.