Lately in the relationship between Azerbaijan and Russia some kind of tension regarding Iran, or to be more exact, regarding the nuclear power-station equipment supply. Thermal equipment for the first Iranian nuclear power-station coming from Russia was detained in Azerbaijan about a month ago. On March 29 Russian road-train carrying thermal equipment, destined for "Busher" nuclear power-station in Iran was detained in "Astara". The negotiations of the representatives of "Rosatom" with Azerbaijan about the equipment have been no success so far.