Developments in Syria
• A Syrian government official warned the United States on Tuesday that military intervention in Syria could lead to regional turmoil. The comments came a day after President Barack Obama said the United States would reconsider its opposition to military involvement in the Syrian civil war if Bashar Assad's government deploys or uses chemical or biological weapons.
• Most of Tuesday's fighting appeared centered in the suburbs of Damascus, Syria's capital.
• In northern Syria, an activist said warplanes and helicopters attacked a number of towns and villages north of Aleppo early Tuesday.