An LSU fraternity is on indefinite suspension amid allegations of “behavioral misconduct.”

LSU confirmed Tuesday that it is investigating claims involving the Acacia fraternity but declined to elaborate on the specific nature of those claims.

“LSU is in contact and working with the Acacia national office, the alumni and chapter leadership,” LSU spokesman Ernie Ballard said.

Despite the interim suspension pending the investigation, Ballard said members are still in the Acacia fraternity house on West Lakeshore Drive.

According to LSU’s Office of Greek Life, the Acacia fraternity had about 51 members, plus 43 recruits. It’s one of 20 fraternities listed as being part of LSU’s Interfraternity Council.

The university has a formal process for investigating allegations against student organizations. Under that process, complaints are lodged through the Dean of Students Office, which conducts the preliminary investigation. That investigation can be followed by formal charges if reasonable cause is found. That would be followed by administrative action or a judicial hearing.

LSU’s Acacia chapter was founded in 1956. The national Acacia website lists Louisiana U.S. Rep. Steve Scalise, R-Jefferson, among its notable alumni.

The national organization didn’t immediately respond to a request for comment on the investigation.

Follow Elizabeth Crisp on Twitter @elizabethcrisp.