The Oklahoma Highway Patrol says two a driver and passenger of a motorcycle were injured overnight along Interstate 40 at U.S. 177 west of Shawnee.

The crash occurred 3:14 a.m. Wednesday on the I-40 eastbound on ramp from U.S. 177 northbound.

A 2008 Yamaha motorcycle driven by Charles Lawrence, 35, of Shawnee, was traveling eastbound on the I-40 on ramp when the driver lost control, causing the cycle to overturn one-fourth time onto its left side. He and his passenger, Shelly Stewart, 43, Shawnee, were ejected from the motorcycle, the OHP reported.

Both were transported to unspecified hospitals. Lawrence was reportedly admitted in fair condition with head, internal and external trunk injuries, while Stewart was admitted in critical condition with head and internal trunk injuries.

Cause of the collision was listed as too fast to negotiate a curve in the roadway, the patrol said.

Helmets were not in use, the OHP said.

The crash was investigated by Trooper Charles Miller, #913 of the Lincoln/Pottawatomie County Detachment of Troop A, and he was assisted by Pottawatomie county Sheriff’s Office, Shawnee Fire, React EMS, and the Citizen Potawatomi Nation Tribal Police Department.