OIL prices could soar after Iran claimed it had taken full control of the Persian Gulf, a key oil shipping route in the Middle East.
In a provocative statement, Tehran announced it had "full supervision over the Persian Gulf" and said the US navy does not belong there.
The Iranian regime has repeatedly threatened to take military action in the Gulf to block other countries' oil exports.
Experts fear such a move would create major supply disruptions and drive up the price of oil significantly.
Iran is furious at US president Donald Trump for imposing economic sanctions intended to halt its sales of crude.
Washington maintains a fleet in the Gulf that protects oil shipping routes.
General Alireza Tangsiri, of the navy of Iran's Revolutionary Guards, said: "We can ensure the security of the Persian Gulf.
"There is no need for the presence of aliens like the United States and the countries whose home is not in here.
"All the carriers and military and non-military ships will be controlled and there is full supervision over the Persian Gulf.