Iran test fired a “new strategic weapon” during the final day of its naval and air defense drills near the Strait of Hormuz, the country’s Revolutionary Guard said Friday, according to The Associated Press. The test drill will help the country in any future battle against the United States, the military unit reportedly claimed.

The test was announced on the last day of the military drills, named "Great Prophet 9,” which began Wednesday near the strategically important strait through which about a fifth of the world's oil passes. Iran's live-fire war games are not uncommon and the country often boasts of advances in its military weapons. However, its claims have never been independently verified.  

In December, Iran’s army carried out naval drills near the strait. The latest drill, which included a simulated attack on a replica of an American aircraft carrier, appeared to be aimed at sending a message to the U.S. over the ongoing nuclear talks between the two nations. The U.S. and world powers suspect Iran of trying to develop nuclear weapons, but the latter has denied the allegations, stating that its nuclear program is meant for peaceful purposes. 

"The new weapon will have a very decisive role in adding our naval power in confronting threats, particular by the Great Satan, the United States," Adm. Ali Fadavi, the Republican Guard's naval chief, said, according to The Associated Press.

He did not provide any details about the new weapon, but local television reportedly broadcast a short video of missiles being launched from under the water.