Indiana police, whose work was being broadcast live on cable TV, arrested a man after neighbors reported his toddler son was roaming an apartment hallway with a loaded gun, officials said.

The video was shown Saturday night on Reelz’s “On Patrol: Live” as Beech Grove police answered a call about a boy, clad only in a diaper, alleged to be walking unsupervised and pointing a firearm.

Officers spoke to a neighbor who called police and then to the boy’s father, Shane Osborne, 45, who said there was no gun in his apartment, “Live” video showed.

Four responding police officers were about to leave the building when another neighbor approached them and shared video, shot from her doorbell camera, of a gun-toting boy in a diaper, “Live” showed.

“That’s absolutely tough to see,” said “Live” analyst Sean “Sticks” Larkin, a retired Tulsa, Oklahoma, police sergeant. “You could see the kid was clearly pulling the trigger. Had it been chambered, loaded, it could have been a horrific, horrific situation.”

The officers immediately went back to Osborne’s apartment and eventually found a 9 mm Smith & Wesson inside a closed roll-top desk, according to the Reelz show.

Another “Live” analyst, Curtis Wilson, a Richland County, South Carolina, sheriff’s deputy, said he doubts the child randomly put the gun in the desk.

“The way that it was placed in this dresser, the way it was actually strategically placed in there and the top down, it’s unlikely that a little kid was able to do that,” he said.

Osborne was booked on suspicion of felony neglect of a dependent and providing a firearm to a child, according to court records. His first court appearance is set for Thursday afternoon, according to the Marion County Prosecutor’s Office.

Before the firearm was found, Osborne had told cameras he can’t own any guns as an ex-convict.

Osborne served 13 months in prison for theft and forgery cases dating to 2012 and 2013 respectively, a state Corrections Department representative said.

It wasn’t immediately clear Tuesday whether Osborne had hired or been assigned an attorney. A call to his cellphone went to voicemail.

The arrest came a little more than a week after a 6-year-old Virginia boy opened fire on his first-grade teacher.

Larkin said the Indiana incident could easily have ended in tragedy.

“There’s a point that he’s holding it up, and it’s literally, it almost looks like it’s pointing up toward his own face,” he said.

Larkin added: “We hear these type of stories where kids come across, find these firearms, these horrific results that do happen sometimes. But seeing it on video is definitely very different.”