A man is fighting for his life after deputies say he was hit by a truck along Highway 6.

Investigators say the man was trying to cross, or possibly just standing on, Highway 6 near Point Northwest Boulevard around 2:30 a.m. Sunday when he was hit by a truck.

"The driver of the truck pulled over," said Deputy D. Wilkie with the Harris County Sheriff's Office. "They went to check on him, called 911."

The victim was rushed to the hospital in critical condition.