State police at Lehighton are investigating indecent assault incidents reported to have occurred at the Pleasant Valley Intermediate School in Polk Township, Monroe County.

Troopers said they are probing a report that four, 13-year-old female students, were inappropriately touched by a 13-year-old male student. The incidents reportedly occurred between Sept. 1, 2009, and Friday, June 4.

The investigation is continuing, troopers said.