AUSTIN, Minn. (AP) -

Authorities say a weekend shooting that injured five people outside a southern Minnesota events center likely was gang-related.

Mower County Sheriff Terese Amazi says several gangs were involved in Saturday night's shooting outside a former supper club near Austin.

Witnesses -- including the five victims -- have not cooperated with authorities. Amazi says witnesses are likely not cooperating because of fear of retaliation.

The shooting happened in the parking lot following a hip-hop concert. The sheriff says authorities have recovered one of the guns involved in the shooting. But no arrests have been made.

The Austin Daily Herald reports a 17-year-old from Sioux Falls, South Dakota, who was reportedly shot in his right calf has been released from the hospital. The sheriff says everyone is expected to recover.