A Walker, West Virginia man remains in poor condition Thursday after a weekend motorcycle accident on Corridor D.

Witnesses said Sunday Robert Jenkins was changing lanes on U.S. Route 50 when the trike flipped over and he was thrown off of it.

They say the sixty-four year old was riding a Harley Davidson with two added wheels because of knee problems.

The cause of the accident is still unknown.

A lieutenant for the Wood County Sheriff's Department said Sunday it appeared he suffered head trauma and possibly internal injuries.

He was wearing a helmet and riding with about 14 other riders.