I wonder why I didn't hear about this sooner? Seems like the kind of thing one of us would be all over...

"Details remain very sketchy but there is elevating talk that a coup attempt has been made against King Salman of Saudi Arabia. Heavy gunfire was heard around the sprawling royal palace complex overnight in the Kingdom, and various reports state that the King had been moved to a safe bunker complex at an air base nearby. Other sources say it may be a terror attack or an assault by Houthi forces that infiltrated the country, or even the result of a small drone overflying a palace checkpoint. So at this point, we really don't have a definitive answer as to what is going on."

http://www.thedrive.com/the-war-zone/20298/gunfire-heard-at-saudi-royal-palace-in-riyadh-as-rumors-of-attempted-coup-mount