BUTLER TWP — At least three people were injured in a crash on Route 422 Friday evening, according to the 911 emergency dispatch center.

The accident occurred at 7:15 p.m. in the eastbound lanes of Route 422, just before the exit to Route 8.

One person was transported by ambulance to a regional trauma center, while two people were taken to a nearby hospital, according to 911 reports. At least two cars were involved in the accident.

Mercer Road and Butler Township Fire District 3 volunteer fire companies responded to the scene.

Township police are investigating the crash.

No other information was available Saturday morning.