Italian media reports and a Libyan official say police in Turin have arrested a Libyan warlord wanted by the International Criminal Court for alleged war crimes.

Osama Elmasry Njeem is suspected of crimes against humanity including murder, torture, rape and sexual violence as a prison overseer in Tripoli.

Italian Prime Minister Giorgia Meloni is facing a probe into her government's decision to repatriate a Libyan general wanted by the International Criminal Court for crimes against humanity and war crimes.

Migrants expressed their dismay and sense of betrayal on Wednesday over Italy's decision last week to release a Libyan policeman wanted by the International Criminal Court (ICC) for war crimes and human rights abuses and allow him to return home.

Italy's Far Right Prime Minister is at the centre of an investigation over the release of a Libyan war crimes suspect. Giorgia Meloni revealed she has been placed under judicial investigation over Italy's surprise release of a Libyan citizen who had been wanted for war crimes by the International Criminal Court (ICC).

Italy's prime minister took to social media on Tuesday to announced that she is being investigated but sounded a defiant note: "I cannot be blackmailed," Giorgia Meloni said. "I will not let myself be intimidated.

Italian Prime Minister Giorgia Meloni has been placed under investigation over a government decision to release a Libyan police officer wanted by the International Criminal Court (ICC). Here is the background to the case and a look at what might happen next.