Delaney didn't reveal what starters John Kanongata'a and Kjelby Oiland and reserve Nick Holt did to warrant the suspension that will cause them to miss Montana's Big Sky Conference game Saturday at Weber State.
Kanongata'a is a junior linebacker, Oiland is a junior center and Holt is a redshirt freshman linebacker.
"It is an unfortunate situation but expectations are clear," Delaney said. "I will not go in to particulars about why the three were suspended, but I can say it does not involve law enforcement. I feel it is my responsibility to hold players accountable."
Montana (4-5) has to win its final two games to avoid its first losing season in 26 years.