A 52-year-old construction worker fell to his death shortly after 8 a.m. Thursday from an upper level of Nicholson Hall in an apparent accident.

The University identified the man as Robin Sutter, of Lakeville, Minn., according to The Associated Press.

“It doesn’t appear to be anything criminal,” University police Lt. Chuck Miner said. “(The U.S. Occupational Safety and Health Administration) will be making an investigation.”

Sutter was an iron worker for Amerect Inc. The company is a subcontractor for McGough Construction Co. of St. Paul, which is renovating Nicholson Hall, according to a University News Service statement.

Peter Taubenberger, Amerect Inc. president, said an investigation is under way but refused to give any details of the accident.

“The accident is under investigation,” Taubenberger said. “Until we finish the investigation, we can’t really say anything.”

Renovations on Nicholson Hall officially began in early February, but the $24 million project started in the mid-1990s.

Upgrades include a complete renovation of the interior, a new roof, heating and air conditioning, and 12 new high-tech classrooms.

The project is expected to be completed in November.