Four people are facing federal charges in connection with a road-rage incident in April in which gunshots were fired at a Tucson police officer driving an unmarked car, prosecutors say.

EPHRATA TOWNSHIP, LANCASTER COUNTY, Pa. - A large police presence caught shoppers and drivers by surprise Wednesday afternoon in Ephrata Township, Lancaster County.

Two Mifflin Township police officers were shot around 6:40 p.m. near Mecca Road and Perdue Avenue. Both were taken to Grant Medical Center.