OKLAHOMA CITY - Inside a metro club, patrons ran for cover.
Around 1:30 a.m. Sunday morning, shots rang out at Club Rush, near N.W. 29th St. and Portland.
Police say it all started with a large fight inside the club that quickly escalated to gunfire.
John Chapman says he was inside with friends when the gunshots rang out.
Chapman said, "I was scared for my life. I probably almost peed my pants."
Capt. Dexter Nelson, with Oklahoma City Police Department, says they know of four people who were shot.
When police got there, they say the gun fight had moved outside.
Officers say the club's legal capacity is approximately 300 people.
However, witnesses say up to 500 people were inside when the shooting occurred.
Witnesses also say the shooting was gang-related and that the violence erupted when a popular gang song was played.
He said, "Security guards that are here on scene, that are armed security guards engaged suspects that were in the parking lot and exchanged gun fire. It doesn't appear that we have anyone with any life threatening injuries but we still don't know how many people were actually shot. We have four that have shown up at hospitals but the possibility of other people being shot still does exist."
There was also a stabbing at the club but police are unsure if it is connected with the shootings.
At this time, three people have been arrested for possession of marijuana with intent to distribute.
Authorities say 19-year-old Dominique Reeves, 18-year-old Maleik Saley and 18-year-old Jayquan Barnett were all arrested for the drugs but have not been charged in connection with the shooting.
Officers say three different weapons were found.
If you have any information on this shooting, please call CrimeStoppers at (405) 235-7300.