SAN ANTONIO – One suspect is in custody, and another is at large after a gas station stabbing attack left one man hospitalized.

Around 2:30 a.m. on Sunday, police responded to calls for a Cutting in Progress on the 11000 Block of I-35 South.

According to investigators, the victim, a 47-year-old man, was inside his car at the gas station when his girlfriend’s ex-boyfriend, alongside a relative, pulled into the gas station.

The suspect allegedly pulled his vehicle in front of the victim’s vehicle, before exiting the vehicle, and stabbing the victim multiple times through his driver’s side window.

Police say that the suspect and his relative, a 41-year-old woman, fled the scene. The victim drove himself to the hospital.

Officers say the suspect’s vehicle was located, and the suspect’s relative was arrested and charged with Aggravated Assault with a Deadly Weapon.

The primary suspect, a male in his 40s identified by the victim as the victim’s girlfriend’s ex-boyfriend, remains at large. The investigation is ongoing.