[Explosions were heard in Saudi Arabia’s capital, the General Administration of Civil Defense said “the danger has been resolved”] September 19th, an explosion was heard in Riyadh, the capital of Saudi Arabia, in the early morning of the 19th. Local residents received an air raid warning issued via a mobile phone app. The Saudi Civil Defense General Authority said on social media in the early morning of the same day that the Saudi National Early Warning Platform had issued an alert to the city of Riyadh to warn of danger. About ten minutes later, the ministry said on social media that "the danger in Riyadh has been lifted." At this time, there is no further information about the explosion. Recently, Yemen's Houthi armed forces have launched missile and drone attacks on Saudi Arabia many times, but this is the first time Riyadh has issued an air defense warning.