DENVER - The sound of shots being fired caused people to flee the Lil Boosie concert at the National Western Complex's Stadium Arena.
The shots were a sound effect during the first song and no shots were actually fired, according to a Denver Police officer.
The concert was promoted as the "Touchdown to Cause Hell Tour" featuring Lil Boosie, Mystikal and DJ Big Spade.
Doors opened at 7 p.m. Thursday. The disturbance was first reported around 11 p.m.
There were a few arrests for drugs and one for D.U.I., a police officer told 7NEWS.