Minnesota ? Two teenage girls who worked at a nursing home have been charged with abuse, accused of taunting, spitting on and groping residents who suffered from Alzheimer’s disease.

According to the criminal complaint, filed Monday, 19-year-old Brianna Broitzman and 18-year-old Ashton Larson laughed earlier this year as they spat in residents’ mouths, poked and groped their breasts and genitals, and at times mocked them until they screamed.

Broitzman and Larson, who worked as part-time aides at the home, have been charged as adults.