The Syrian government on Saturday welcomed the naming of a former Algerian diplomat as the U.N.'s new point-man in efforts to halt the country's escalating civil war. Activists reported more shelling by regime troops, including an air attack on a northern border town where scores died earlier this week.

In a statement, the office of Vice President Farouk al-Sharaa not only expressed support for Lakhdar Brahimi, it also denied reports circulating in Arab media that al-Sharaa had defected to the opposition.

Al-Sharaa "did not think, at any moment, of leaving the country," the statement said.

The vice president's cousin Yaroub, a colonel in the military defected to the opposition earlier this month, appearing on the pan-Arab Al-Arabiya TV. The regime of President Bashar Assad has suffered a string of prominent defections in recent months, though his inner circle and military have largely kept their cohesive stance behind him.