​A mass-casualty incident has been declared in order for crews to get enough resources to the scene.  Read More  Breaking News

ADAMS TOWNSHIP, Pa. — Multiple people are injured after a school bus for the Mars Area School District crashed into a tree in Butler County.

PHOTOS: School bus crashes into tree in Adams Township

Emergency crews are in the 1600 block of Three Degree Road in Adams Township near Mars High School.

The driver of the bus and at least two students were taken to hospitals, according to Adams Township police. The extent of their injuries is currently not known.

Mars Area School District superintendent Josh Schwoebel said the bus was carrying elementary school students.

A mass-casualty incident was declared for crews to get enough EMS resources to the scene.

We have several crews at the scene. Check back for updates on this breaking story as we work to learn more.

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