Iran's Islamic Revolutionary Guards Corps (IRGC) have begun military maneuvers in the Persian Gulf, reports released by news agencies say.
The war games, called Payambar-e Azam 3 are conducted by missile units of the IRGC naval and air forces, Mehr and Fars news agencies reported.
The reports noted that the exercises early Tuesday morning are aimed at improving combat readiness and capability.
Meanwhile, Reuters is reporting:
The U.S. Navy said it was carrying out an exercise in the Gulf, days after vowing that Iran will not be allowed to block the waterway which carries crude from the world's largest oil-exporting region.
"The aim of Exercise Stake Net is to practice the tactics and procedures of protecting maritime infrastructure such as gas and oil installations," Commodore Peter Hudson said in a U.S. Fifth Fleet statement.
Two U.S. vessels were taking part in the exercise alongside a British warship and one from Bahrain, a Gulf Arab ally which hosts the Fifth Fleet. "Stake Net seeks to help ensure a lawful maritime order as well as improve relationships between regional partners," the fleet's statement said.