The reports of attacks on commercial ships came after the US said it "eliminated" 16 Iranian mine-layers in the area.
The release of 400 million barrels by members of the International Energy Agency is designed to "address disruptions in oil markets stemming from the war in the Middle East".
The US says the ships were targeted in the Strait of Hormuz - a key shipping route. In Dubai, authorities say the airport is operating normally after two drones were downed in the area.
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Israel launches new strikes at Iran and Lebanon, as US says it has hit 16 Iranian mine-laying ships
A top Iranian security official has threatened Donald Trump to be careful "so that you won't get eliminated" after the US president warned against stopping the flow of oil through the Strait of Hormuz ...
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