Four people died on Thursday in a helicopter crash in the Douira neighborhood of Algiers, APA reports quoting Xinhua.
The helicopter, which belongs to the Tassili Airlines Company, was rented to the National Agency for Studies and Follow-up on Railways Investment, Tassili Airlines spokesman Karim Bahard was quoted by the APS news agency as saying.
The victims include the pilot and his assistant, in addition to two air photographers who were conducting a cartography of the new railway line linking Algiers downtown to the western suburb of Zeralda, the report said.
In the past three years, the North African nation has witnessed a number of planes crashes, mostly of military aircraft.
The last accident took place in mid June, when a military helicopter crashed in the province of Naama, 700 km southwest of Algiers, leaving one soldier dead.
The most fatal plane crash was reported in Feb. 2014, when a C-130 Hercules aircraft of the Algerian Air Force crashed in Oum El Bouaghi province, 400 km east of Algiers, killing 77 soldiers.
In April 2015, a military helicopter crashed in the southern province of Illizi, killing two soldiers. In Nov. 2014, an Algerian Air Force MIG-25 'Foxbat' fighter crashed, but the pilot managed to eject himself out of the plane and survived.