A man was struck by a pickup truck Thursday night as he attempted to cross a busy street on the Northeast Side.

The accident happened just after 8:30 p.m. in the 1700 block of Austin Highway.  

The driver of the pickup truck told police he did not see the man crossing the street.

Police believe the victim is in his late 40s or early 50s, and may have been homeless.

He was transported to the San Antonio Medical Center in critical condition. He suffered major head injuries plus a broken arm and leg.

Investigators said the driver was not under the influence of alcohol or drugs. Police said the victim was crossing the street illegally.