According to the Charlton police report, the alleged incidents happened between February and March. They included three incidents of unwanted grabbing and touching of the buttocks and lower back of a student without consent.
Police are investigating an indecent assault and battery incident on an MBTA Route 86 bus, where the victim is a 15-year-old girl. The assault took place in Somerville near McGrath Highway, and authorities are urging anyone with information to contact them.