The pigs reportedly ate every piece of the victim. Photograph by: PETER PARKS , AFP/Getty Images

A screeching mafia kingpin was eaten alive by pigs in a sickening settling of gangland accounts, Italian police have revealed.

Francesco Raccosta vanished in March 2012, but his horrific fate only came to light after an underworld insider spilled the beans. Raccosta’s grisly end was part of a six-decade-long gang war and retaliation for the execution of rival mobster Domenico Bonarrigo.

According to the London Daily Telegraph, during a clandestine recording crime boss Simone Pepe, 24, boasted about Raccosta’s grim murder.

Pepe bragged that Raccosta screamed and begged for his life.

“It was satisfying to hear him scream ... Mamma mia, how he squealed, but I couldn’t give a s**t,” Pepe said on the tape.

“Someone said a few bits of him remained at the end of it all, but I couldn’t see anything, for me nothing remained at all. I said, ‘Wow, how a pig can eat.’”

Italian prosecutors made the arrest after Pepe bragged about the murder. More than 20 suspects were arrested as part of the anti-mafia campaign, Operazione Erinni.

Raccosta’s murder was allegedly one of five executions carried out in revenge for Bonarrigo’s assassination.

The latest executions are part of an ongoing mob war between fighting factions of the so-called “Ndrangheta” — the mafia group that controls much of southern Italy.

Bonarrigo was shot three times and killed while driving his car 11 days before Raccosta was snatched and murdered, cops say. No trace of Raccosta has ever been found.