An apartment superintendent in Brooklyn lost his life following a violent confrontation with a man reportedly linked to a group suspected of stealing packages from the building since the summer, authorities and sources disclosed.

The 41-year-old victim, a married father of three young children, was transported in critical condition from his Ditmas Park residence on Ocean Avenue to Kings County Hospital Center shortly after 8 a.m. on Wednesday, according to the New York Police Department (NYPD).

Officers reported that the superintendent, whose name is being withheld until his family is informed, suffered severe head injuries and was pronounced dead soon after reaching the hospital.

Police confirmed the arrest of a 30-year-old man, whose identity has not been disclosed. While the precise nature of their relationship remains unclear, sources indicated that the altercation began as a verbal dispute before escalating into violence.

Johnny Garcia, a 55-year-old porter who had worked alongside the victim for 15 years, shared with The Post that the altercation likely stemmed from ongoing frustrations over persistent package thefts that building staff and residents have been contending with for several months.

Garcia said that a trio of scalpers has repeatedly come by the apartment and made off with tenants’ packages, but that the thefts recently started happening more frequently.

He said that the person of interest in police custody came to the apartment “at least three times” before and once tried “to break open the door with a screwdriver.”

A “package theft alert” pasted inside the building warned residents about the crew of thieves, who would repeatedly buzz random apartments until they were granted entry into the lobby, according to the sheet.

Garcia added that “some tenants, they see and then tell them to go” — but not his friend and co-worker.

“A man came to rob the packages and [the super] saw him and he tried to hold him for the police to come. It looked like a fight inside because the carpet looked like it was moved. He tried to keep him, to hold him for the police,” Garcia said.

Garcia surmised that the victim spotted the thief shortly after dropping off his children, who are all under 8 years old, at school.

“I still can’t believe it. [The super] was a very good guy. Very good guy with me, the best guy. I know him very well. He was a working person, working very hard,” Garcia said.

The porter added that the super had only just returned from a trip to “his country” to visit family, so they hadn’t seen one another in a while.

“I see police. I see all family. I say, ‘what happened?’” Garcia said.

“I came in happy to see him to say hi, but no.”

The victim’s relatives told The Post that he was “a great man.”

A cause of death hasn’t been determined yet, and the police investigation is ongoing.