HARRIS COUNTY, Texas (KTRK) -- An 18-year-old was killed, and a 20-year-old was injured in a shooting outside a north Harris County restaurant, the sheriff's office said.

Investigators said the shooting happened along the North Freeway near Airtex at about 1:30 a.m. Sunday.

According to deputies, two groups of people got into an argument in the parking lot before the suspect went to his car, grabbed a gun, and opened fire.