Human rights groups voiced outrage Wednesday after Italy released a Libyan warlord on a technicality, after he was arrested on a warrant from the International Criminal Court accusing him of war crimes and crimes against humanity.

Human rights organizations and opposition lawmakers in Italy expressed their anger on Wednesday after the country released a Libyan warlord due to a legal technicality.

Ossama Anjiem, who runs a major Libyan prison, was in Italy to watch a soccer match. He returned home after an Italian court found issues with the warrant for his arrest.

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.

A Libyan warlord was arrested in Italy on an ICC warrant but was expelled back to Libya after a tribunal's refusal to approve the arrest.