Four men who were dressed in Bruins attire when they allegedly beat a man at the North Quincy MBTA Station, leaving him with severe facial injuries, pleaded not guilty to assault charges after turning themselves in to Transit Police Wednesday.

The men were identified as Stiles Bezema, 21, of Wrentham; Antonio Green, 31, of Feeding Hills; John Pritoni, 29, of Norfolk; and Thomas Pritoni, 23, also of Norfolk, officials said.

In a statement, Transit Police said the suspects’ surrender came as “a direct result of numerous tips we received from our MBTA community.”

The men were arraigned Wednesday in Quincy District Court on charges of aggravated assault and battery resulting in serious injuries, according to the Norfolk district attorney’s office.


Bezema was held on $2,500 bail, and the others on $5,000 bail, David Traub, a spokesman for the Norfolk office, said in a statement.

Bezema and Green are expected to appear back in court on June 3, Traub said.

Both John and Thomas Pritoni were transported to other courts.

All four men were ordered to stay away from the victim, Traub said.

Transit police said the alleged attack occurred around midnight Friday at the station. An earlier agency statement released Monday was headlined “Alleged Boston Bruins fans viciously beat victim causing facial fractures. Recognize them?”

The Monday statement also included surveillance photos of five suspects, at least four of whom were wearing Bruins gear at the time of the altercation.

It wasn’t immediately clear Wednesday if police were still seeking a fifth suspect. A motive for the alleged attack hasn’t been disclosed.

Transit Police Superintendent Richard Sullivan said Wednesday afternoon in an e-mail that “[a]ll individuals have been identified. The victim was perplexed as to why he was assaulted. Motive unknown.”

Andrew Stanton can be reached at andrew.stanton@globe.com. Travis Andersen can be reached at travis.andersen@globe.com. Follow him on Twitter @TAGlobe.