The fraternity conducted “[b]ehavior that endangers any person(s), including self,” according to the three-page letter the Midtown Atlanta university sent late Friday. The behavior wasn’t specified in the letter and a Georgia Tech spokeswoman couldn’t comment Monday on the specifics behind the suspension.

Emails and telephone calls to chapter leaders were unanswered Monday. The fraternity has five business days to file a formal appeal of the suspension. Appeals can go as far as the Georgia Board of Regents.