Stockholm, Shawwal 28, 1434, September 04, 2013, SPA -- US President Barack Obama says he is convinced the Syrian government deployed chemical weapons, dpa reported. "We believe with high confidence that chemical weapons were used and that (Syrian President) Assad was the source," Obama said during a visit to Sweden. -- SPA 21:09 LOCAL TIME 18:09 GMT www.spa.gov.sa/1143055