Interpol has issued a red notice for the fugitive Libyan leader Muammar Gaddafi, his son Saif al-Islam Gaddafi and his former intelligence chief Abdullah al-Senussi.
The notice comes at the request of the International Criminal Court which has issued arrest warrants for the three men on charges of crimes against humanity.
Meanwhile, the BBC reports another convoy of senior Gaddafi loyalists has crossed into Niger, including General Ali Kana, the commander of his troops in the south of Libya.
A dozen people arrived in a convoy of at least three vehicles.
Sources in Agadez told the BBC the convoy members had checked into a hotel built by Colonel Gaddafi.
Several convoys of former loyalists are said to have crossed the border with Niger over the past few weeks.
A number of Colonel Gaddafi's aides have reached the capital, Niamey.
Meanwhile, the government of Niger has confirmed it would honour its commitment to the International Court if Colonel Gaddafi or his sons enter the country.