A shooting near a "Chicago Fire" production set was just part of the "unbelievable" scene that unfolded Wednesday in front of A.A. Rayner & Sons Funeral Homes. A real fire broke out down the street, causing confusion among residents who thought the actors were real firefighters choosing not to respond to the blaze.

Charles Childs Jr., director of the funeral home where the NBC show was filming, exclusively told Fox News Digital that shortly before a suspect fired shots near the set, the cast had been practicing extinguishing a real fire while a separate incident was reported down the block.

Almost as soon as the real fire was reported, authorities responded to the scene shortly after 1:45 p.m. when an "unknown offender, armed with a handgun shot at a group of people standing in the 5900 block of W. Madison Street" near the Oak Park area of the city, according to the Chicago Police Department.

Childs Jr. explained the entire scenario was "chaotic" as neighbors were bewildered as to why the dozens of assumed firefighters in his lot weren't responding to the fire down the street, unbeknownst to them that the people they had been watching put out fires weren't trained first responders, but were actually actors. 

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'Chicago Fire' actor Taylor Kinney

"Chicago Fire" was filming when a shooting happened nearby, in addition to a real blaze which broke out down the block, according to funeral home director Charles Childs, Jr. (Adrian S. Burrows)

"We had the honor of being selected to be in an episode of ‘Chicago Fire,’ and the crew was standing outside when all of a sudden they were getting prepared to do a shoot," Childs Jr. explained of the general scene at A.A. Rayner & Sons Funeral Homes on Madison Street. 

"First, a fire broke out in the adjacent block down on 1500 West Madison. Then, the Chicago Fire Department (CFD) responded to that, and while Chicago Fire Department responded, ‘Chicago Fire’ television stars and crew were just one block away so people saw the actors and wanted to know why they weren’t responding to the real fire."

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Charles said the confusion could have been the storyline for a bestselling book as people hurried around pleading for assistance from the cast, assuming they were first responders who simply weren't responding.

"At the funeral home, it was a make believe fire, and the actors were just doing their jobs," he said. "So while all of this was going on, some idiot used a firearm and shoots at people. We don't know who was being targeted. We don't know who the assailant was."

'Chicago Fire' season nine engine

The "Chicago Fire" (seen in season 10) shooting occurred near the funeral home where the NBC show was filming Wednesday (Adrian S. Burrows)

While "no one was struck," the suspect fled the scene in a "dark color SUV" and CPD detectives are investigating the shooting.

"It was chaotic because all these activities were going on at the same time," Childs Jr. said. "Why would somebody do that? There was a police presence. There were security guards present. It was just an unbelievable situation."

He added, "It was one of those days. You couldn't have written this in a novel."

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Taylor Kinney sits in the back of an emergency medical vehicle

"Chicago Fire" was filming at A.A. Rayner & Sons Funeral Home in Oak Park. Taylor Kinney stars as Lt. Kelly Severide in the popular NBC show. (Adrian S. Burrows)

Childs Jr. speculated approximately 70 people were in the proximity of his funeral home or on scene of the production, and somebody could have been seriously hurt. 

"Somebody could have been killed, shot accidentally," he said. "We just don't know what was going through this person's mind. We don't understand it," he said.

Multiple security personnel were on scene of the Dick Wolf drama, which stars Jesse Spencer, Kara Killmer, David Eigenberg, and Lady Gaga's ex-fiance, Taylor Kinney.

'Chicago Fire' season 10 stars

"Chicago Fire" actors were safe following a shooting near the production set on Wednesday (pictured in Season 10). (Adrian S. Burrows)

Between the sounds of the sirens blaring from responders to the fire down the street and the police signals, Childs Jr. said everything was "so chaotic" and "confusing."

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"We can pray that nobody was hurt," he said. "I’m not sure how many victims were displaced because of the fire."

He added, "We’re all thankful that nobody got hurt here."