LYNN TWP., Pa. -

Police in Lehigh County say a school bus and a pick-up truck collided in Lynn Township Wednesday morning.

It happened around 9:15 at Kings Highway and Mosserville Road.

Police say the truck lost control as it came around a corner from Mosserville Rd. onto Kings Highway. Officials say the Northwestern Lehigh school bus tried to steer out of the truck's way, but the two collided.

Officials say there were 21 children on the bus at the time of the crash, but no one was hurt.

Another bus arrived at the scene to take the students to school. The superintendent says some of the students later complained of headaches, and went home with their parents.