Several employees were ill after they said their former coworker poured a cleaning agent into their company’s coffee maker, according to a police report.

Employees at Jas Forwarding Worldwide Inc, said 32-year-old Mayda E. Rivera-Juarez had been doing it for several weeks.

Friday, Rivera-Juarez was arrested and charged with felony assault, alteration of food, drug, with intent.

She is being held at the Loudoun County Adult Detention Center without bond.