Huntsville police responded to two unrelated incidents Sunday night in the Mastin Lake Road area, one involving life-threatening injuries.

At around 8 p.m., officers received a call involving a vehicle collision with a go-kart at Mastin Lake Road near Memorial Parkway.

According to police, one person involved in the incident has life-threatening injuries.

At about the same time, police responded to nearby Access Road on a shooting call.

A short time later, a victim arrived at Huntsville Hospital in a personal vehicle.

The shooting victim’s condition is unknown.