Yemen's Houthis said they struck "sensitive" sites in Riyadh with missiles and drones on Saturday, prompting the first air raid alerts issued by Saudi authorities for the capital since July.
Riyadh residents received air raid alerts and heard explosions, followed by an all-clear signal.
Saudi Arabia issued overnight alerts warning of potential danger around Riyadh as the Houthis escalate attacks on the kingdom.
Saudi authorities issued air-raid warnings overnight as flames and black smoke rose above King Khalid International Airport on Saturday.
Saudi civil-defense authorities issued alerts after flames were seen near the kingdom’s main airport, as Islamabad separately pressed Tehran to protect regional energy and shipping routes, CNBC reported.
Saudi authorities issued a rare alert for the capital as witnesses described explosions and fire near King Khalid International Airport.