Lake Alfred, Florida -- UPDATE: The Polk County Sheriff's Office has released an image of the truck involved in a hit and run on Hwy 17/92 on Aug. 14.
Detectives are still searching for the driver of the beige or tan 2004-2007 Ford F-150 pickup truck that hit Eric Alexander from behind while he was on his Yamaha scooter.
Authorities say Alexander, 48, was heading west on the highway, between Century Drive and Woodland Drive, around 5:30 Wednesday morning when he was hit.
After impact, Alexander was ejected from his scooter and taken to Lakeland Regional Medical Center where he is reportedly in critical condition.
Traffic deputies say the truck sustained damage to the right front headlight assembly, the front chrome grill and may have hood or other front damage.
Anyone with information is urged to contact Deputy David Hooyman at 863-298-6200.