US commentator Tucker Carlson claimed in a tweet that Saudi Arabia and Qatar detained Israeli Mossad operatives allegedly planning bombings in Gulf countries.
Spain on Sunday said it would not allow the United States to use its air bases for operations related to the strikes in Iran, deeming the attacks a violation of international law.
Qatar downed two Iranian bombers and halted LNG production on Monday, as Tehran widened its attacks to hit oil facilities in Saudi Arabia and the UAE in a sharply escalating Gulf crisis that has sent prices soaring.
Iran's Revolutionary Guards targeted a United States air base in Bahrain, the Islamic republic's elite force said in a statement carried on Tuesday by the official IRNA news agency.
US President Donald Trump warned that his attack on Iran could run longer than a month, as Tehran retaliated to ongoing strikes by targeting US allies in the Gulf and drones hit the US embassy in Saudi Arabia on Tuesday.
Oil prices jumped Monday as the widening war in Iran disrupted tanker traffic through the Strait of Hormuz, highlighting how important the passageway is to the world’s oil supply.