CANONSBURG, Pa. (AP) - Two police officers have been shot in western Pennsylvania, and the search is underway for a suspect.

The shooting happened at about 4 a.m. Thursday in Canonsburg, 20 miles southwest of Pittsburgh.

Canonsburg Mayor Dave Rhome tells radio station WJPA two officers were shot, but the he did not know their conditions. Their names have not been released.

Officers responded to a domestic disturbance when they were ambushed.

One officer was taken to a hospital in Canonsburg and the other was flown to a hospital in Pittsburgh.

Schools in the area have been cancelled. Nearby residents have been cautioned to avoid the area while police search for possible suspects.