Whitman County Sheriff's investigators and the Whitman County Coroner's Office are investigating an ATV accident that took the life of a man Saturday evening.

The man's name had not been released as of Sunday morning.

According to a press release, WHITCOM received a called at 7:09 p.m. of an unknown injury ATV accident in the area of accident in the area of McNeilly Road near Milepost 1 west of Colfax.

Deputies determined the man had been riding a Honda 3-wheeler in a field and went over a berm of dirt at a high rate of speed.

The three wheeler went airborne and the man was thrown from the ATV, officials said.

He was not wearing a helmet.

The rider was pronounced dead at the scene.

No other details have not been released.