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Editor’s Note: This is a developing story and will be updated. You can follow live updates here.

(CNN) —  

Chicago police have photos of people they’d like to talk to in the case involving “Empire” actor Jussie Smollett, who was the victim of what police are investigating as a possible hate crime.

Investigators have located a surveillance camera that shows people who are now wanted for questioning, Chicago police spokesman Anthony Guglielmi said in a statement on Twitter. Detectives had not yet found still images or video of the actual incident as of late Tuesday evening, police told CNN.

Camera footage doesn't capture the incident, but police want to question the two people in this image.
PHOTO: Chicago Police Department
Camera footage doesn't capture the incident, but police want to question the two people in this image.

Smollett said he was attacked in the early morning hours on Tuesday in a Chicago neighborhood known as Streeterville by two people who were “yelling out racial and homophobic slurs” and “poured an unknown chemical substance” on him, according to police.

Smollett reported that one of his attackers also put a rope around his neck, police said. Police found video showing Smollett entering into his building with what appears to be a rope tied around his neck, police spokesman Anthony Guglielmi told CNN.

“It was being worn like a neck tie but shaped like a noose,” Guglielmi said.

Both Smollett and his music manager told the police they were on the phone with each other during the alleged attack, Guglielmi told CNN.

“We have not been able to independently verify this because cell phone records would not be produced; We have no reason to doubt those statements, but we needed to independently verify those statements because of their financial relation,” Guglielmi said.

Smollett told police both attackers fled the scene.

Smollett took himself to Northwestern Hospital and was in “good condition” in the hours following, authorities said.

CNN’s Don Lemon spoke to Smollett and a mutual friend who was at the hospital with the actor. Smollett confirmed the incident took place.

He was shaken and angry that an attack like this could happen. Smollett told CNN he fought back at the attackers.

“Given the severity of the allegations, we are taking this investigation very seriously and treating it as a possible hate crime,” police said in a statement Tuesday.

Investigators are testing the chemical Smollett said he was doused with and have yet to confirm the nature of the substance.

Detectives had canvassed and reviewed hundreds of hours of video as of late Tuesday and expanded the search area along the Chicago riverfront hoping to find video to be able to release a public description of the offenders.

A dozen police detectives, with the assistance of the FBI, are working the case, the spokesperson said.

Smollett has starred on Fox’s “Empire” since 2015. He plays Jamal, a successful singer in the musical Lyon family. Like his character, Smollett identifies as gay.

In the aftermath of Smollett’s assault, his friends, colleagues and peers showed an outpouring of support for the actor, who is an active advocate for the LGBTQ community.