Two postal employees have been indicted on charges of selling cocaine while on duty at the Somerville Post Office, according to an announcement from the Massachusetts U.S. Attorney's Office.
The two men, Gerard Harrington, 48, of Stoneham and Sean Williamson, 41, of Peabody, allegedly sold cocaine on at least six different occasions, beginning on at least May 13.
John Thibedeau, 48, of Waltham, and William Zuluaga, 57, of East Boston, were also indicted on the drug trafficking charges, according to the announcement.
Williamson, Thibedeau and Zuluaga were arrested Friday at 4:31 p.m. on Lowell Street in Somerville, according a booking log provided by Somerville police.
According to the U.S. Attorney's announcement, the four men each face up to 20 years in prison, three years of supervised release and up to $1 million in fines if convicted.