Jordan state TV reports air-raid sirens sounded across the country.

On the evening of Sept. 1 local time the U.S. embassy in Qatar issued a security alert saying Middle East tensions have left the security environment complex and unpredictable and that an escalation is possible. It warned U.S. citizens in the region to remain vigilant and flagged possible flight cancellations, airspace closures and travel disruptions, advising travelers to monitor airport and airline operations.

俄羅斯總統新聞祕書佩斯科夫：德國正在繼續走升級路線，而柏林針對萊比錫事件對俄羅斯提出的指控沒有任何證據支持。