Iranian state-run media report that Iran’s navy has begun drills in the Strait of Hormuz, the Persian Gulf waterway on Iran's southern coast that is used to transport around one-third of the world's seaborne oil exports.
The reports say the maneuvers -- involving warships, submarines, and aircraft – began early on December 28.
Naval commander Habibollah Sayyari was quoted by the Islamic Republic News Agency as saying exercises would last until January 2 in the Strait of Hormuz, the Gulf of Oman, and northern parts of the Indian Ocean.
Amid international tensions over Iran’s nuclear program, Tehran has previously threatened to close the Strait of Hormuz in retaliation for any foreign attack.
In the past year, the United States has boosted its naval presence in the Gulf region, deploying two aircraft carrier battle groups.
Based on reporting by Reuters, AP, and dpa