The Saudi Arabian government put security forces on high alert after getting threats about possible militant attacks on shopping mall or oil reserves, Reuters reported. "There was information about a possible act targeting a mall or Aramco installations," said Interior Ministry spokesman Mansour al-Turki Monday. "We passed this information to the security forces to be on alert." The oil-rich kingdom and the world's biggest oil exporter is leading a coalition that is carrying out airstrikes against Iran-allied Houthi rebels in Yemen. They're also part of the U.S. coalition that has been targeting ISIS, which has taken over large parts of Iraq and Syria.