DAMASCUS, Syria, Ramadan 13, 1433, Aug 1, 2012, SPA - The United Nations mission in Syria says its observers have witnessed government fighter jets opening fire on Aleppo, the country's largest city. In a briefing on Wednesday, mission spokeswoman Sausan Ghosheh expressed concern over the situation in the northern city of Aleppo, where opposing fighters have been battling government forces for the past 12 days, according to a report of the Associated Press. She described "heavy use of heavy weapons, including tanks, helicopters, heavy machine guns, as well as artillery." --SPA 14:01 LOCAL TIME 11:01 GMT www.spa.gov.sa/1019580