MCKEES ROCKS, Pa. (AP) — Authorities say a fire at a McKees Rocks apartment building has displaced several families but did not cause any injuries. The fire in McKees Rocks was reported around 10:30 p.m. Sunday, and firefighters were able to extinguish the blaze a short time later. They also rescued some pets. Authorities say the fire appears to have started in a second-floor unit, though the cause remains under investigation. That apartment sustained substantial interior damage, while others had less damage.