MANCHESTER, Tenn. -- Coffee County Sheriff Steve Graves said a body was found inside a tent on the grounds where the Bonnaroo Music and Arts Festival was held last weekend.

Matthew Lands, 26, was found Tuesday at 11:30 a.m.

Authorities are unsure whether the man was a concert goer or part of the cleaning crew.

The festival ended Sunday, and Graves said there were still about 200 people at the site cleaning up on Tuesday.

There were no signs of trauma, and the cause of death was unknown.

Nashville medical examiner Bruce Levy was scheduled to do an autopsy.

There have been at least six deaths at the festival since it began in 2002, including at least two people who died from drug overdoses and one who was hit by a musician's tour bus.