Another MBTA employee was snapped sleeping on the job Saturday, bringing the number up to three snoozers since May.

The Blue Line worker, who was not identified, was disciplined, according to MBTA Spokesman Joe Pesaturo.

"The photo, sent to WCVB, was taken at Revere Beach Station late Saturday night," Pesaturo said.

Last month, a worker was caught sleeping at Park Street station around 11 a.m. That photograph was posted by an anonymous Twitter user, and tweeted to the MBTA’s Twitter account. In May, a veteran MBTA Transit Police officer was caught sleeping on the job. Both of those men faced disciplinary action.