BEIRUT, April 12 (Xinhua) -- Lebanon's President Michel Aoun condemned Thursday Israeli airstrikes in Syria, saying the country's use of Lebanese airspace was an "attack on our sovereignty," the National News Agency (NNA) reported. Aoun reiterated during a cabinet session an announcement made by the Foreign Ministry two days prior to that Lebanon was set to make a formal complaint to the United Nations Security Council over Israel's illegal use of Lebanese airspace to attack Syrian targets. Prime Minister Saad Hariri also commented on current tensions during the session, saying "we are working to free Lebanon from any potential problems it might incur as a result of regional developments." On Monday, Russia's Defense Ministry said that two Israeli F-15 warplanes had launched eight guided missiles from Lebanese airspace, targeting an air base near Syria's Homs.