Mauritanian authorities have arrested former Libyan leader Muammar Qaddafi's chief of intelligence, Abdullah al-Senussi, as he arrived at Nouakchott airport.
Mauritania's official AMI state news agency said Senussi, who has been indicted by the International Criminal Court (ICC) on charges of crimes against humanity, arrived late on March 16 from Casablanca in Morocco, bearing a falsified Malian passport.
The Hague-based ICC issued an arrest warrant in June 2011 for both Senussi and Qaddafi's son Saif al-Islam, who was captured in the Sahara Desert in November.
Both men have been charged with being "indirect co-perpetrators" of murder and persecution.
With Reuters and AP reporting