UPDATE: Huntsville Police said two people were killed, two people were injured in a shooting outside a motorcycle club on Mastin Lake Road Friday morning.

Huntsville Police Department spokesman Lt. Michael Johnson told WHNT News 19 police responded to a call of shots fired at a motorcycle club at 6500 Mastin Lake Road around 12:30 a.m.

Police initially found one man who was shot with non-life-threatening injures and later found two more men in the parking lot who had been shot. One had life-threatening injuries.

HEMSI took all three men to Huntsville Hospital. Authorities said the fourth person either drove themselves to the hospital or suffered a minor injury which didn’t require treatment.

Officers were holding 10-15 people for questioning, but they weren’t sure if they had the shooter.

Police said there is no danger to the public and they believe everyone involved knew each other.

Officers added they didn’t know what led to the shooting.