Mel Tucker announced Sunday night that four Michigan State players have been suspended as a result of the post-game fight in the tunnel against a single Michigan player.

Tank Brown, Khary Crump, Angelo Grose and Zion Young have been suspended as a result of the altercation on Saturday night.

Tucker, calling the altercation “disturbing,” released a statement Sunday.

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“We are currently working with law enforcement, Michigan State and Michigan campus leadership, and the Big Ten Conference to further evaluate the events in Ann Arbor, including but not limited to, additional student-athlete participation in the altercations and contributing factors. The initial student-athlete suspensions will remain in place until the investigation is complete.”

The scuffle broke out in the Michigan Stadium tunnel after fourth-ranked Wolverines beat the Spartans 29-7 Saturday night. Social media posts showed Michigan State players pushing, punching and kicking Michigan’s Ja’Den McBurrows in and near a hallway that doesn’t lead to either locker room.

McBurrows and defensive back Gemon Green went up the tunnel, walking alongside the Spartans, after the game while much of Michigan’s team was waving them off the field after beating their in-state rivals for the first time in three years.

Michigan coach Jim Harbaugh said Saturday night that one of the players, who he did not identify, might have a broken nose. A social media post on Sunday showed a Wolverine, who appears to be Green, getting roughed up by Spartans.

Green, in another post, is surrounded by police while shouting across the tunnel at Michigan State players.

“Two of our players were assaulted,” Harbaugh said. “I saw on the one video. 10 on one. It was pretty bad. It needs to be investigated.”

Michigan State President Samuel Stanley publicly apologized Sunday for a “violent” skirmish in which Spartans football players appeared to attack Michigan players in a stadium tunnel after losing to the rival Wolverines.

“I’m extremely saddened by this incident and the unacceptable behavior depicted by members of our football program,” Stanley said in a statement. adding that those involved would be held responsible by coach Mel Tucker. “On behalf of Michigan State University, my heartfelt apology to the University of Michigan and the student athletes who were injured.

“There is no provocation that could justify the behavior we are seeing on the videos. Rivalries can be intense but should never be violent.”

The Associated Press contributed to this report.