Police continue to investigate a crash that sent one person to the hospital in critical condition.

It happened this weekend along Boca Chica and Padre boulevards in the city of Brownsville.

Authorities say a driver ran through a red light, hitting another vehicle– that driver not wearing a seat belt.

Investigators add this is the first holiday-related crash this season. Toxicology reports are pending to determine if the driver was under an influence. He is expected to face charges. The identity of the victim has not been released.