TWO armed robbers have stolen two petrol tankers worth R500000 in White River in Mpumalanga. Security guard Absalom Nkosi, 28, was at his post at Shell Depot in White River when two armed men seized him. Police spokeswoman Sergeant Thabisile Gama said the men made Nkosi lie on the ground and then tied his hands behind his back with a belt. They then drove off with the two tankers, which were filled with petrol to refill pumps at filling stations. Nkosi later untied himself and reported the matter to police. The two tankers are still missing.