LANCASTER – Firefighters in Lancaster battled two fire calls yesterday. They responded shortly after 6 a.m. to the 400 block of S. Prince Street. The two alarm fire was seen on the outside of a rowhome. No injuries were reported. The cause is under investigation. Crews then were dispatched shortly after 10 a.m. to the 300 block of N. Queen Street for a three alarm apartment building fire. No one was hurt in the fire in which officials believe was accidental caused by an air conditioner.