A 19-year-old man is in jail after a girl said he inappropriately touched her at a house in West Ashley.

Christian F. Prochaska of Knightsville was arrested Monday and charged with criminal sexual conduct with a minor under 11 years old, according to Charleston police records.

A man told police he left his girlfriend’s children at a home on Timberleaf Court with the homeowner and the homeowner’s former foster son Aug. 13 while he went to help his brother. When the man got back, one of the girls said Proschaska had inappropriately touched her.

Prochaska was being held in the Charleston County jail Tuesday.