After a Saturday afternoon pub crawl in Boston, and possibly one too many alcoholic beverages, a Worcester man has been summoned to court after being found "surfing" on a MBTA commuter train.

According to a MBTA Transit Police report, the unidentified 28-year-old man was detained by Southborough and Ashland police when the train's engineer stopped the train at 9:45 p.m. between the two towns after being told that someone was on top of the train. At the time, the train was traveling 40 miles per hour.

The engineer told police that after climbing to the top of the engine, he saw that the "man's body was half over the top rung of the ladder, 'like a child clinging over a shopping cart.'"

"The engineer said the man climbed down on his own power and was brought to Southborough MBTA Station where the police removed him," according to the report.

Transit police have not identified the man, who was wearing a sombrero and poncho when he told municipal and MBTA officers that he had been drinking with friends in Boston since 3 p.m. that afternoon. The man's identity will be made public when he is formally charged with trespassing.

The man told officers that he had become separated from his friends and began walking car to car to find them, but he denied being on top of the train, according to the report. Officers noted that the man's hands "were blackened, which were consistent to being in contact with the outside of the train." He was later released to a friend.

The Worcester-bound train arrived 24 minutes late to Union Station because of the incident, according to the MBTA.