Riyadh residents receive 'hostile aerial threat' alert

Riyadh residents receive 'hostile aerial threat' alert Residents of the Saudi capital Riyadh received a mobile phone alert early on Sunday warning of a "hostile aerial threat", AFP reported. The alert was withdrawn shortly afterwards. "Warning. The area is under a hostile aerial threat. Please remain calm, stay indoors or in a safe place away from windows and doors," it read. Saudi civil defence later said the danger…