Iran says it has attacked 10 ships near the Strait of Hormuz after the US sank five Iranian oil tankers, in the biggest declared wave of tit-for-tat attacks on shipping by both sides since the start of the six-month-old war.On Wednesday, the United Kingdom Maritime Trade Operations (UKMTO) reported several vessels in the northern Gulf and Gulf of Oman, on either side of the strait, had been hit by disabling fire.A vessel was reported listing, possibly indicating it had taken on water after being struck by a projectile off Port Rashid in the United Arab Emirates, UKMTO said.Two Iraqi port officials said a tanker carrying 2 million barrels of fuel oil, the New Andros, had caught fire after being struck by a drone in Iraqi waters. There were no reports of casualties among the 22 crew.Iran has also threatened oil tankers in Kuwaiti and Bahraini ports, according to a statement carried by state media.A maritime security source reported a liquefied natural gas tanker was damaged in the Emirati port of Khor Fakkan.Iran said it would soon release maps of a new, much larger off-limits zone at sea that would extend as far as the Arabian Gulf off Chabahar on the far reaches of Iran's coast near Pakistan, the Guards said.Iran's Islamic Revolutionary Guard Corps (IRGC) said they would sharply escalate their response to any further attacks, and if the enemy struck two or three Iranian targets, Iran would respond by hitting 20.The US military said it destroyed five Iranian oil tankers on Tuesday, including the Riesco. (Reuters: US Central Command)Earlier, the US military's Central Command (CENTCOM) posted video of the strikes, which it called a response to the IRGC targeting a US Navy warship twice with ballistic missiles over the previous two days.No Americans were harmed, the US said."Iran continues to try to hit US naval ships, and for every time they do that or try to do that they're going to lose tankers," US Secretary of State Marco Rubio told reporters during a visit to Colombia.In a post on X Wednesday, local time, CENTCOM dismissed claims two naval defenders had been hit."This is completely false," the statement read."No US Navy warship has been struck; all IRGC attempted attacks failed.""Meanwhile, US forces have successfully destroyed 10 Iranian tankers in just the last week.""These vessels were part of a multibillion-dollar shadow network that funds the IRGC, and Iran cannot defend them."Attacks beyond the StraitIran has also carried out a ballistic missile attack on a base used by US forces near Al Azraq in Jordan again, according to an IRGC statement on state media.Although Iran said its missiles inflicted heavy damage, Jordan said its air defences intercepted 18 of the 20 Iranian missiles, with two falling in unpopulated areas with no casualties.A US official said Iran's strikes in Jordan were ineffective and all American troops were accounted for.Both the US and Iran are seeking to exert control over the Strait of Hormuz, where about one-fifth of the world's oil passed before the war began.Iran has targeted US assets and allies in the region throughout the war, including in Jordan several times, killing at least two US military personnel during one strike in July.Iran has also threatened oil tankers in Kuwaiti and Bahraini ports, according to a statement carried by state media.A maritime security source has reported a liquefied natural gas tanker was damaged in the Emirati port of Khor Fakkan, though it was unclear who was responsible.Oil prices extended gains in early trade on Wednesday with Brent crude nearing $US100 a barrel on market concerns over the disruption of oil tanker traffic in the Strait of Hormuz.Recent attacks by Yemen's Iran-aligned Houthis on top energy producer Saudi Arabia have added to supply concerns.The US strikes on Tuesday came as Iran's Revolutionary Guard said it had captured a US uncrewed submarine at the entrance to the Strait of Hormuz.In response, a Pentagon spokesperson said an underwater drone had "malfunctioned more than a day ago"."It was surveying regional waters in support of ongoing operations. The defective drone was an older model that neither collected sensitive data nor carried any classified sonar or radar equipment," the spokesperson said.Reuters/AP