BRATTLEBORO — Police arrested a second person Thursday they say is connected to a three-on-one assault of an 18-year-old man earlier this week.

Deven Moffitt, 29, of Brattleboro was charged with aggravated assault and interference with emergency services, according to a news release from Brattleboro police. He was held on $10,000 bail and is scheduled to appear in Windham County Superior Court Criminal Division in Brattleboro today.

Three people reportedly attacked the 18-year-old in a Main Street home Wednesday, leaving him with serious but not life-threatening injuries, according to the release. Brattleboro police Lt. Adam Petlock said Thursday that one of the attackers struck the victim with a gun, but the gun was not fired.

Police are still investigating, according to the release, and more arrests are expected.