Tufts University suspended 27 members of its men’s ­lacrosse team for two games in the upcoming season, after an investigation found that the players behaved inappropriately during a women’s volley­ball game last semester.

John Barker, dean for under­graduate and graduate students, and Bill Gehling, ­director of athletics, wrote in a letter published in The Tufts Daily that the conduct ­occurred during a game between Tufts and Smith College in September. Spectators, players, and coaches from Tufts and Smith were interviewed, they wrote.