A 16 year-old Sterling boy is accused of grabbing two middle school students and trying to sexually assault them as they walked to school Monday morning, according to the Loudoun County Sheriff’s Office.

The two victims, a 14-year-old girl and a 12-year-old girl, were walking to school on a path near Seneca Ridge Drive and Augusta Drive in Sterling around 7:30 a.m. when the youth grabbed them, authorities said.

The two girls were able to escape with the help of a male teen, who witnessed the incident and chased the suspect away, according to the Sheriff’s Office. The witness then escorted the girls to Seneca Ridge Middle School, where the incident was reported to school officials, authorities said.

The teenager, who has not been identified because he is a juvenile, was charged Monday by the Loudoun County Sheriff’s Office with two counts of abduction with intent to defile and two counts of aggravated sexual battery. He is currently being held at the Loudoun County Juvenile Detention Center, according to the Sheriff’s Office.

Anyone who was in this area during the time of the assault and may have heard or witnessed the crime is asked to contact Detective P. Beaver of the Loudoun County Sheriff’s Office Criminal Investigations Division at 703-777-0475.