JEDDAH: US Secretary of State Mike Pompeo Wednesday described strikes on key Saudi oil installations as an “act of war” as he landed in Jeddah to meet with Saudi Arabias Crown Prince Mohammed bin Salman. Pompeo described the drone and cruise missile strikes on Saturday as an “Iranian attack”. He said it had not come from Yemen’s Iran-backed Houthi militants and that there was no evidence the attacks had been launched from Iraq. "This is an attack of a scale weve just not seen before," he added. Pompeo was met at Jeddah airport by Saudi Foreign Minister Ibrahim Al-Assaf. Pompeos visit comes as President Donald Trump said on Wednesday there were many options short of war with Iran after Saudi Arabias display of remnants of drones and missiles it said were used in the I that was "unquestionably sponsored" by Tehran. "There are many options. Theres the ultimate option and there are options that are a lot less than that. And well see," Trump told reporters in Los Angeles. "Im saying the ultimate option meaning go in — war." Trump, who earlier said on Twitter that he had ordered the US Treasury to "substantially increase" sanctions on Iran, told reporters the unspecified, punitive economic measures would be unveiled within 48 hours. Trumps tweet followed repeated US assertions that the Islamic Republic was behind Saturdays attack on Aramco facilities and came hours after Saudi Arabia said the strike was a "test of global will." Earlier on Wednesday, UK Prime Minister Boris Johnson said he had spoken with US President Donald Trump about the Aramco attack, and agreed that Iran must not be allowed to acquire a nuclear weapon. Also on Wednesday, Kuwaits army released a statement announcing it was raising its preparedness level for some units, given the tensions in the Middle East region.