The cause of the crash is unknown. At least two servicemen are said to have been killed. Netizens have shared footage from the alleged wreckage site.
Local rescue teams have responded to the wreckage site. Algerian President Abdelmadjid Tebboune confirmed on Twitter that two pilots have been killed.
The Su-30 fighter is a Russian-made two-seat derivative of the earlier Su-27 Flanker, with an extended operating range, capable of air-to-air and air-to-ground strikes and equipped with a wide variety of precision-guided munitions.