Environmental samples have been taken at a sensitive military site in Iran, the head of the U.N. nuclear agency said on Monday, citing "significant progress" in its investigation of Tehran's past activities.
Rebels who have inflicted big losses on Syrian President Bashar al-Assad say Russia's intervention in support of its ally will only lead to an escalation of the war and may encourage the rebels' Gulf Arab backers to pour in more military aid.
Prime Minister Benjamin Netanyahu flew to Moscow on Monday to seek reassurance from President Vladimir Putin about Russia's military deployment in Syria and to lay out Israel's concerns about the risk of weapons reaching militants on its borders.