Police on Saturday morning continued to investigate a deadly shooting outside a popular music venue on Philadelphia's South Street.

Gunfire erupted as a crowd waited outside the Theater of Living Arts -- commonly called the TLA -- concert hall on South Street between 3rd and 4th about 8:20 p.m., police said. Rapper Lil Durk had a concert scheduled at the venue at 7 p.m., but the show had not started yet. One man, whom police have not yet identified, was badly wounded.

That man died of a gunshot wound to his abdomen a short time later at Hahnemann University Hospital. Police estimated that the victim was in his 20s.

Chief Inspector Scott Small tells NBC10 officers heard a scuffle happening near the theater before the gunfire. Witnesses said they heard three gunshots and saw the victim lying on the ground bleeding.

Small said the suspected shooter jumped into a limo and fled the scene. Officers caught up with the vehicle a few blocks away along Christopher Columbus Boulevard. Three men were taken into custody for questioning by homicide detectives, Small said. A handgun was also recovered. No official charges had been filed Saturday morning.

An often popular section of South Street, the thoroughfare was packed with people when the shooting happened.

Police said the tour bus belonging to rapper Lil Durk was struck by gunfire, but it was unclear if the shooting had anything to do with the concert. Small said hundreds of people were on the sidewalk when bullets began flying. Videos posted to social media sites show people hiding in shops nearby following the shooting.

