MARSHALL COUNTY, Ind. -- The Marshall County Sheriff's Department reports deputies responded to a single-vehicle crash on Thursday after Marshall County Central Dispatch was informed of a crash at U.S. 6 and Union Road around 6:24 p.m.

The caller told authorities the driver was trapped inside the pick-up truck.

Deputies arrived on scene and found a 2000 Ford F-150, driven by 48-year-old William Neiswender of Plymouth.

A witness on scene told deputies Neiswender had passed them at a high rate of speed and lost control at the curve before going off the roadway and crashing into a tree.

Lutheran Air was called to the scene.

Authorities say the crash remains under investigation.

The condition of the driver is unknown.