Dubai: Iran's foreign minister warned Thursday that any attack on his country over a drone-and-missile strike on Saudi Arabia's oil industry will result in "all-out war," further pushing up tensions across the Persian Gulf.The comments by Mohammad Javad Zarif represent the starkest warning offered yet by Iran in a long summer of mysterious attacks and incidents following the collapse of its nuclear deal with world powers, over a year after President Donald Trump unilaterally withdrew US from the accord.

Zarif's comments also appeared to be in response to US Secretary of State Mike Pompeo, who a day earlier while travelling to Saudi Arabia referred to the attack as an "act of war." Asked by CNN what would be the consequence of a US or Saudi strike, Zarif said: "All-out war." "We won't blink to defend our territory," he said.