Exclusive footage of terror act in North Caucasus unveiled
The blast in the central market of the republic's capital, Vladikavkaz, was captured on closed circuit television.
Seventeen people were killed and nearly 180 injured after a suicide bomber detonated explosives in a car close to the entrance of the crowded market. The bomb was stuffed with pieces of scrap metal to maximise the injuries to the victims.
Authorities are now questioning three people suspected of links to the attack.
Also, police have put together a photofit of the suicide bomber.