Algerian state radio says that more than 100 people were killed in a military plane crash southwest of the capital.
The radio report said the cause of the crash Wednesday near an air base in Boufarik remains unclear.
Algerian state news agency said the Soviet-designed Il-76 plane was headed for Bechar in southwest Algeria.
Emergency services have been dispatched to the site of the crash.
Boufarik is located in northern Algeria some 30km from the capital, Algiers.