Authorities are investigating the death of a Nebraska man whose body was found at a casino parking garage in Council Bluffs.

The Daily Nonpareil reports the body of the 54-year-old Omaha man was found a little after 9:30 p.m. Sunday on the ground level of the parking garage of Harrah’s Casino & Hotel. Police Sgt. David Dawson says the man is believed to have jumped from the fifth floor of the garage around 6:30 p.m.

Dawson says a note was found in the man’s vehicle and that “it doesn’t appear that anything is suspicious” about the man’s death.