NEWARK, N.J. (AP) -- Newark police said a school bus was hit by gunfire Tuesday as it stopped to drop off students from a city elementary school. No one on the bus was injured.

The small, yellow bus was carrying three students from the Dayton Street Elementary School when shots were fired just before 5 p.m. Tuesday.

Newark police spokesman Hubert Henderson said one round struck the door of the bus, shattering its window. The driver drove the bus to a safe location, then called police.

One person on the street was grazed by a bullet. He was treated and released from University Hospital.

It was not known who fired the shots.

Henderson said police are still trying to sort out what happened.