COLLEGE STATION, Texas -- The Brazos County Sheriff's Office is investigating the death of a 20-year-old man found at a fraternity house Tuesday evening.

Sheriff Chris Kirk said deputies were called out to the Sigma Phi Epsilon Fraternity (SigEp) house, located on North Graham Road, around 5:45 p.m.

House members thought the student, now identified as Matthew Hayes, of Beaumont, was sleeping until they went to wake him up and found that he was unresponsive. Fraternity members told police that Hayes was last seen Monday before returning from a party.

Deputies are interviewing members who live at the off-campus fraternity house. Kirk said the initial investigation appears to show no signs of foul play. An autopsy has been ordered to determine the cause of death.

According to the local chapter's website, the fraternity was established at Texas A&M University in 1973. It is recognized by the university.

This is the second death of a fraternity member in College Station in the last three months. In late August, a member of the Sigma Nu Fraternity, Anton Gridnev, was found dead inside the chapter house. An autopsy showed Gridnev died of an accidental overdose.

We will update this story as we learn more.