The move of Ivorian authorities comes days after the African Union (AU), civil society organizations and human rights watchdogs across the continent and beyond have expressed outrage after CNN last week aired a footage showing sub-Saharan migrants allegedly being sold at slave markets in Libya.
USA television network CNN aired the footage last week of an apparent live auction in Libya where black men were presented to North African buyers as potential farmhands and sold off for as little as $400.
The Foreign Ministry of Gambia - a small western African nation from which many migrants are headed for Libya - issued a statement on Tuesday condemning what it described as "ongoing horrific and indignant reports on the sale of African migrants as slaves in Libya".
Recalling that the libyan authorities, " repeatedly alerted", had launched an investigation, Mr Le Drian wished "it to go fast", for justice to be rendered, otherwise " we will have to engage in an worldwide process of punishment", he threatened.
Guterres wants Libyan authorities as well as the International Criminal Court, which has a mandate to open war crimes investigations in Libya, to look into the slave auctions, said United Nations spokesman Farhan Haq.
"Slavery has no place in our world and these actions are among the most egregious abuses of human rights and may amount to crimes against humanity".
The African Union will contribute to finding a solution to the Libyan crisis, Mahamat said, hinting that the previous peace agreement signed between the various factions in Libya had already failed. It does so as a permanent member of the security Council, it has the ability to do so and we do, " he stressed in front of the national Assembly.