Air Algerie flight AH1020 declares mid-air emergency on journey from Algiers to Marseille 'then disappears from radar'
Algeria 'abandoning migrants' in desert
A UN agency is warning of an emerging crisis along the Niger border after Algeria began dumping migrants in the Sahara Desert.
The International Organisation for Migration (IOM) says it has dealt with almost 10,000 migrants abandoned in the desert since September.
Some have been left by traffickers, but others were deported by Algerian authorities - left in the desert and told to walk to the nearest border town.
In the searing heat, a number of people have died.