The US is likely to take military action against Iran in the coming days for Tehran’s downing a U.S. drone in international airspace on Wednesday near the Strait of Hormuz. The Central Command said an RQ-4 Global Hawk drone aircraft was shot down by an Iranian surface-to-air missile system while operating in international airspace around 7:35 p.m. on Wednesday. President Trump suggested retaliation for the attack is coming. “Iran made a very big mistake,” the president tweeted. Later during an Oval Office meeting with Canadian prime minister Justin Trudeau, Trump was asked about a military strike against Iran and repeated that Iran “made a very big mistake” because the drone was flying over international waters. “Iran made a big mistake. This drone was in international waters, clearly,” he said. “We have it all documented scientifically, not just words. And they made a very bad mistake.” Trump suggested that the drone was mistakenly shot down and noted that “I have a big, big feeling” an Iranian air defense operator erred in attacking the drone, someone “loose and stupid who did it.” Asked what will come next, the president said “You’ll find out.” Air Force Lt. Gen. Joseph Guastella, commander of Central Command air forces, said the RQ-4 drone was conducting surveillance over the Gulf of Oman and the Strait of Hormuz in international airspace near recent IRGC attacks on two tankers. The drone was struck by an IRGC surface-to-air missile fired from a base near Goruk, Iran, he said. “This was an unprovoked attack on a U.S. surveillance asset that had not violated Iranian airspace at any time during its mission,” Guastella said in a statement. “This attack is an attempt to disrupt our ability to monitor the area following recent threats to international shipping and free flow of commerce.” The three-star general also said that Iran falsely claimed the aircraft was shot down over Iran. “The aircraft was over the Strait of Hormuz and fell into international waters.” “At the time of the intercept, the RQ-4 was operating at high-altitude approximately 34 kilometers from the nearest point of land on the Iranian coast,” he said. “This dangerous and escalatory attack was irresponsible and occurred in the vicinity of established air corridors between Dubai, UAE, and Muscat Oman, possibly endangering innocent civilians.” “Iranian reports that the aircraft was over Iran are false,” said CENTCOM spokesman Capt. Bill Urban. “This was an unprovoked attack on a U.S. surveillance asset in international airspace.” Tensions have increased with Iran since last week when the Islamic Revolutionary Guards Corps, Tehran’s shock troops, were caught removing a limpet mine from the hull of a Japanese tanker that had been hit by other mines the United States has concluded came from Iran. “They would be making a big mistake if they doubted the president’s resolve on this,” Bolton added, echoing the president’s tweet. The latest confrontation sent crude oil prices higher over concerns of a new Middle East war. Oil prices increased more than $3 to $63 a barrel, Reuters reports. Options are expected to range from covert action against Iranian military targets using special forces commandos to airstrikes against Iranian bases. The administration is weighing what it regards as proportional responses to recent Iranian actions. That would likely mean an airstrike against Iranian air defense batteries located near the Strait of Hormuz that were involved in shooting down the Global Hawk drone.