A “60 Minutes” investigation that was abruptly pulled over concerns about its characterization of a Salvadoran mega-prison housing migrants deported from the US — sparking furor within CBS News — has been spreading online after apparently streaming on a Canadian TV app.

What appeared to be the shelved segment on El Salvador’s notorious CECOT prison circulated online with the Global TV logo after CBS News yanked the report just hours before its scheduled Sunday night broadcast, citing the need for additional reporting.

The spread of the piece added a new twist to the explosive internal dispute at CBS, where correspondent Sharyn Alfonsi accused network leadership of killing the story for political reasons.

Video labeled as the disputed “60 Minutes” segment was shared online after being recorded on the Global TV app — which usually carries new episodes of the show on Mondays — according to reporting cited by Reuters.

CBS did not immediately explain how the segment appeared on the Canadian platform, and a “60 Minutes” spokesperson did not respond to Reuters’ questions about the apparent broadcast north of the border.

A CBS News source told The Post the appearance of the delayed “60 Minutes” segment on the Global TV app was the result of a technical and procedural error, not an intentional release.

According to the source, CBS had already decided to hold the segment, which focused on the CECOT prison in El Salvador, for a future broadcast.

However, Global TV — CBS News’ Canadian broadcast partner — mistakenly published the original version of the episode on its streaming app, making the segment available without authorization.

CBS News initially distributed the planned Friday version of the “60 Minutes” broadcast to its partners, as is standard practice.

After the lineup changed the following day, CBS issued an update instructing Global TV that a revised version of the episode was being sent.

While Global TV correctly aired the updated version on its television channel Sunday night, the change was not properly reflected on its app, which still carried the earlier version containing the held segment.

Global TV has since removed the episode from its app, but by then the footage had already been captured and shared across social and digital platforms.

Paramount’s content protection team is now working to remove the unauthorized material through routine takedown requests, the source told The Post.

The “60 Minutes” report focused on Venezuelan migrants deported by the Trump administration to CECOT, which human rights groups have condemned for harsh conditions.

The segment noted allegations of torture at the site, which was initially designed to be El Salvador’s solution to rampant gang violence, and raised questions about how US authorities characterized the men sent there.

CBS abruptly pulled the piece about three hours before airtime Sunday, posting a brief social media note saying the broadcast lineup had been “updated” and that the report, titled “Inside CECOT,” would air at a later date.

A CBS News spokesperson said the segment “needed additional reporting,” but Alfonsi blasted that explanation in an internal note to colleagues, arguing the story had been screened multiple times and cleared by CBS lawyers and standards editors.

“It is factually correct,” Alfonsi wrote, according to a CBS News employee familiar with the message.

“In my view, pulling it now, after every rigorous internal check has been met, is not an editorial decision, it is a political one.”

The Post has sought comment from CBS News and Global TV.

CBS News editor in chief Bari Weiss has publicly and privately defend her decision to hold the segment, insisting it lacked critical context and sufficient input from the Trump administration.

In a memo obtained by Axios, Weiss argued the piece failed to adequately explain why the White House deported 252 Venezuelans to CECOT and did not fully present the government’s legal rationale, including its argument that detainees were entitled to judicial review.

“At present, we do not present the administration’s argument for why it sent 252 Venezuelans to CECOT,” Weiss wrote, calling on producers to push harder for on-the-record comments from senior officials such as border czar Tom Homan and top White House adviser Stephen Miller.

Weiss also questioned some of the data in the report, its handling of Homeland Security Secretary Kristi Noem’s March visit to the prison and its reliance on outside academic analysis, concluding that airing the piece as drafted would have “done our viewers a disservice.”

She reiterated those arguments on a staff call Monday morning, according to Axios, again saying the segment was not ready to air.

The fact that the report apparently streamed in full in Canada intensified scrutiny of CBS’ decision-making.

The controversy came as Weiss has sought to shake up CBS News and bring balance to the Tiffany Network since taking the top editorial job in October.

Weiss is planning a new set of policies requiring all CBS News teams to involve senior editors more closely in sensitive stories, Axios reported Tuesday.

The procedures will come alongside a new “masthead” at the network.

The Post first reported on Weiss’ recent top hires. She tapped Free Press deputy editor Adam Rubenstein as deputy editor of CBS News in October. She also hired ex-Wall Street Journal editor Charles Forelle as managing editor weeks later.