Vessels in the Strait of Hormuz are visible near the beach of Bandar Abbas, close to Larak Island.
US forces have struck two Iranian launchers on Iran's Larak island, a US official said, marking the first known American strikes on Iran since late July.
"Islamic Revolutionary Guard Corps (IRGC) forces were observed preparing to launch rockets with sea mines into Strait of Hormuz," the BBC's US partner CBS News quoted US Central Command (Centcom) spokesman Cdr Tim Hawkins as saying.
The IRGC said Sunday's attack killed two people and injured two others, and vowed "response and punishment". It later said it had launched an attack on US military targets in Jordan, according to Iranian state media.
The BBC has approached Centcom for comment.
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Jordan's army said shortly after the IRGC statement that it had intercepted eight missiles.
"Air defense systems intercepted eight missiles that breached the Kingdom's airspace at dawn today, Monday," Jordan's armed forces said in a statement, quoting the army's spokesperson, reported by the state Petra News Agency.
The US strike is the first known attack on Iran since President Donald Trump paused a renewed military campaign in late July.
Larak Island is just offshore from the key port of Bandar Abbas and sits right on the Strait of Hormuz, a vital waterway for global shipping.
Iran is currently making tanker traffic pass by this island for checking and reportedly forcing vessels to pay $2m (£1.5m) to cross.
Hossein Mohebbi, the IRGC's spokesman called the attack a "strategic and fatal mistake by the Trump regime" and said that the "enemy will pay the consequences of this miscalculation in both the economic and military fields".
Iran's Tasnim news agency, which is affiliated with the IRGC, said earlier that the attack was carried out by drones.
