US Secretary of State Mike Pompeo is blaming Iran for drone attacks Saturday against Saudi Arabia's oil infrastructure.
The attacks, attributed to Iranian-backed Houthi rebels in Yemen, sparked huge fires at a vulnerable chokepoint for global energy supplies.
But in Saturday tweets, Pompeo says "there is no evidence the attacks came from Yemen" and points the finger at Tehran.
He adds, "Iran has now launched an unprecedented attack on the world's energy supply."
Pompeo says the US calls on all nations to "condemn Iran's attacks."