KEY POINTS:
Russian President Vladimir Putin, brushing off the threat of a reported plot to assassinate him, has arrived in Iran for talks focusing on Tehran's nuclear row with the West.
In the first visit by a Kremlin leader since Josef Stalin's in 1943, Putin will meet Iranian President Mahmoud Ahmadinejad, who is fighting calls from Western powers to stop nuclear work that Washington says is aimed at building atomic bombs.
Tehran says its intentions are peaceful. Putin is also attending a summit of five Caspian Sea states working on a deal on dividing the sea and its huge oil and gas resources.
