Syrian troops shelled the southern city of Daraaa early on Saturday, killing at least 15 people, activists said. And in Damascus, residents spoke about a night of shooting and explosions in the worst violence Syria's capital has seen since the uprising against President Bashar Assad's regime began 15 months ago, according to a report of the Associated Press. The U.N. said several weeks ago that at least 9,000 people have been killed since the crisis began in March last year while Syrian activists say the violence has claimed the lives of more than 13,000 people. Damascus resident and activist Maath al-Shami said clashes between rebels and troops in the city's neighborhoods of Qaboun and Barzeh lasted until about 1:30 a.m. Saturday. On Friday, government troops clashed with rebels from the Free Syrian Army in Damascus' Kfar Souseh district in some of the worst fighting yet in the capital. The clashes were a clear sign that the ragtag group has succeeded in taking its fight to the regime's base of power. Al-Shami added that troops shelled Qaboun and Barzeh with tanks until after midnight Friday adding that at least four people were killed. Al-Shami added that tanks withdrew before sunrise Saturday and the area has been relatively quiet. To the south, in Daraa, the Britain-based Syrian Observatory for Human Rights said 17 people were killed in the shelling, while the Local Coordination Committees said 15 civilians lost their lives. Both groups said dozens of people were also wounded in the shelling early Saturday.