Portland, Maine ? The body of a Harvard Business School student has been recovered from Portland Harbor three days after being told to leave a waterfront bar for being intoxicated while celebrating his upcoming graduation with two friends.

Police said a diver recovered the body of 31-year-old Nathan Bihlmaier of Cambridge, Mass., shortly before noon Tuesday near Custom House Wharf.

Police Chief Michael Sauschuck said Bihlmaier was separated from friends after leaving the Ri Ra Irish Pub at 11:30 p.m. Saturday. He later called his friends to tell them he was lost.

A native of Osborne, Kan., Bihlmaier was a Kansas University graduate, due to graduate from Harvard on Thursday. His wife is pregnant with their first child.

Police say an autopsy is scheduled.