UPDATED, May 26, 5:58 p.m. ET

One person is dead and three others are injured after a shooting took place during a T.I. concert at Irving Plaza in New York City Wednesday night, an NYPD spokesperson confirmed to Complex. T.I. had not yet appeared on stage when the incident took place.

The spokesperson told Complex that the shooting happened at 17 Irving Place. Irving Plaza, a music venue, was evacuated, according to tweets from concert-goers. 

Here's footage of the crowd clearing out when shots were fired:

Police said the victims included three men and one woman. One of the men, 33, was shot in the stomach, and died at Mount Sinai Beth Israel​ hospital. The two other victims, a 34-year-old man who was shot in the chest and a 26-year-old woman who was shot in the leg, are being treated at Bellevue Hospital Center. A 30-year-old man, who was shot in the leg, is being treated at the New York University Hospital privately.

An eyewitness in the video, below, claims that no one was searched upon entering Irving Plaza.

.@PIX11News Witness tells me he heard one shot and no one was searched when they entered @IrvingPlaza pic.twitter.com/s2BnDphCdl

— Myles Miller—PIX11 (@MylesMill) May 26, 2016

 Another man describes the stampede that occurred after the shooting. 

.@PIX11News Kirk Elphage says he was near the stage when shots rang out pic.twitter.com/QsnYiJrRI5

— Myles Miller—PIX11 (@MylesMill) May 26, 2016

Chief of Manhattan Detectives William Aubry said in a statement that the shooting happened on the third-floor, green-room area when Maino and Uncle Murda were on stage. 

RT @MylesMill: .@PIX11News here's @NYPDDetectives Chief Aubry pic.twitter.com/SHZvRiYO7z

— Chris Uño (@CRS_One) May 26, 2016

According to Karen Civil, there were reports that rapper Troy Ave's crew was involved in the shooting. Troy Ave's management said he was grazed by a bullet Wednesday night. The New York Daily News reported that Troy Ave was arrested on Thursday after the shooting. A rep for Anderson .Paak, who was also on the concert bill, confirmed to Complex on Wednesday that he wasn't injured. 

50 Cent paid a visit to Bellevue Hospital early Thursday morning. "I'm here to support my friend, his girl was shot," 50 told PIX 11. "What's happened here is not good." According to XXL, 50 also visited Troy Ave. Though nothing has been confirmed by the NYPD, reports have surfaced that the man who died is BSBBanga, a member of Troy's entourage. 

T.I. tweeted his condolences on Thursday after the shooting:

Complex reached out to a rep for T.I. who referred all inquiries to the NYPD. Irving Plaza did not immediately respond to a request for comment. We will continue to update this story as it develops.