Trump Says Iran Made 'Very Big Mistake' after Pentagon Confirms Iranian Forces Shot Down US Surveillance Drone

Tehran: The Pentagon confirmed Thursday that Iranian forces shot down a US naval surveillance drone but insisted the aircraft was in international air space, not that of Iran.

The BAMS-D drone was downed by an Iranian surface-to-air missile system while flying in international airspace over the Strait of Hormuz, a US Central Command spokesman, Navy Captain Bill Urban, said in a statement. He said it happened at 2335 GMT Wednesday.

"Iranian reports that the aircraft was over Iran are false," he added. "This was an unprovoked attack on a US surveillance asset in international airspace."

President Donald Trump declared on Thursday that "Iran made a very big mistake" in shooting down a US drone.

White House press secretary Sarah Sanders says Trump was briefed Wednesday night and again Thursday morning about the incident. She says the administration also will keep in touch with lawmakers on Capitol Hill.

Iran's Revolutionary Guard shot down a US drone amid heightened tensions between Tehran and Washington over its collapsing nuclear deal with world powers, American and Iranian officials said, though they disputed the circumstances of the incident.

The Guard said it shot down the drone over Iranian airspace, while two US officials told The Associated Press that the downing happened over international airspace in the Strait of Hormuz. The different accounts could not be immediately reconciled.

Previously, the US military alleged that Iran had fired a missile at another drone last week that was responding to the attack on two oil tankers near the Gulf of Oman. The US blames Iran for the attack on the ships; Tehran denies it was involved.

The attacks come against the backdrop of heightened tensions between the US and Iran following President Donald Trump's decision to withdraw from Tehran's nuclear deal a year ago.

Separately, Saudi Arabia said Thursday that Yemen's Iranian-allied Houthi rebels launched a rocket targeting a desalination plant in the kingdom the previous night. The White House said Trump was briefed about that attack.

Iran has quadrupled its production of low-enriched uranium and threatened to boost its enrichment closer to weapons-grade levels, trying to pressure Europe for new terms to the 2015 nuclear deal.

In recent weeks, the US has sped an aircraft carrier to the Mideast and deployed additional troops alongside the tens of thousands already in the region. From Yemen, the Houthis have launched bomb-laden drones into neighbouring Saudi Arabia.

All this has raised fears that a miscalculation or further rise in tensions could push the US and Iran into an open conflict, some 40 years after Tehran's Islamic Revolution. Thursday's drone incident marks the first direct Iranian-claimed attack on the U.S. amid the crisis.

"We do not have any intention for war with any country, but we are fully ready for war," Revolutionary Guard commander Gen. Hossein Salami said in a televised address.

Iran's paramilitary Revolutionary Guard, which answers only to Supreme Leader Ayatollah Ali Khamenei, said it shot down the drone on Thursday morning when it entered Iranian airspace near the Kouhmobarak district in southern Iran's Hormozgan province. Kouhmobarak is some 1,200 kilometres southeast of Tehran and closes to the Strait of Hormuz.

The Guard said it shot down the drone at 4:05 a.m. after it collected data from Iranian territory, including the southern port of Chahbahar near Iran's border with Pakistan. Iran used its air defence system known as Third of Khordad to shoot down the drone a truck-based missile system that can fire up to 30 kilometres into the sky, the semi-official Fars news agency reported.

Iran's state-run IRNA news agency, citing the Guard, identified the drone as an RQ-4 Global Hawk. However, the US Navy also flies a variant that looks similar, called the MQ-4C Triton.

The drones cost over USD 100 million apiece and can fly higher than 10 miles in altitude and stay in the air for over 24 hours at a time. They have a distinguishable hump-shaped front and an engine atop. Their wingspan is bigger than a Boeing 737 passenger jet.

The Guard described the drone as being launched from the southern Persian Gulf but did not elaborate. American RQ-4 Global Hawks are stationed at the Al-Dhafra Air Base in the United Arab

Emirates, near the capital, Abu Dhabi. AP journalists saw the drones on the base's tarmac during a March 2016 visit by then-Vice President Joe Biden.

The US officials told the AP the Iranians fired a surface-to-air missile striking the American drone over the Strait of Hormuz, in international airspace. The strait is the narrow mouth of the

The Persian Gulf through which 20 per cent of all global oil moves.

The officials spoke to the AP on condition of anonymity as the information had yet to be cleared for release to the public. They did not elaborate on the type of drone shot down, nor the

mission it was conducting.

However, the US has been worried about international shipping through the Strait of Hormuz since the limpet mine attacks in May and June.

Salami, speaking to a crowd in the western city of Sanandaj, described the American drone as "violating our national security border."

"Borders are our red line," Salami said. "Any enemy that violates the borders will be annihilated."

Iran's Foreign Ministry separately protested the drone, saying it entered Iranian territory.

Iran has claimed to have shot down American drones in the past. In the most famous incident, in December 2011, Iran seized an RQ-170 Sentinel flown by the CIA to monitor Iranian nuclear sites after it entered Iranian airspace from neighbouring Afghanistan. The Iranians later reverse-engineered the drone to create their own variants.

Meanwhile, Saudi Arabia said Yemen's Houthi rebels fired a rocket a desalination plant in al-Shuqaiq, a city in the kingdom's Jizan province. The state-run Saudi Press Agency quoted military spokesman Col. Turki al-Maliki as saying the attack caused no damage and wounded no one.

The Yemeni rebel Al-Masirah satellite news channel earlier said the Houthis targeted a power plant in Jizan, near the kingdom's border with Yemen, with a cruise missile.

A Saudi-led coalition has been battling the Houthis since March 2015 in Yemen, the Arab world's poorest nation now pushed to the brink of famine by the conflict. In recent weeks, the Houthis

have launched a new campaign sending missiles and bomb-laden drones into Saudi Arabia.