Jessica Vargas, 34, of Athol, was arrested yesterday and charged in federal court in Worcester with one count of bank embezzlement.

According to court documents, Vargas was an employee at Athol Savings Bank when she embezzled more than $100,000 by making unauthorized cash withdrawals from customer accounts. Bank documentation shows that Vargas made unauthorized withdrawals from the accounts of various customers, including more than $53,000 from the account of an 84-year-old bank customer and almost $13,000 from the account of an 88-year-old customer.

Vargas faces up to 30 years in prison, five years of supervised release and a fine of $1 million.