Saudi Arabia issues early warning of potential 'hostile threat' in Riyadh

​Saudi ‌Arabia issued ​an ‌early warning alert for ‌a potential "hostile ‌threat" in ⁠Riyadh ​on ⁠Monday, according to ⁠a message ​seen by ⁠Reuters.

Three booms ⁠were ​heard ⁠in the ⁠Saudi capital, ⁠a Reuters witness ‌said.