The Syrian National Coalition has named veteran dissident George Sabra as caretaker leader of the main opposition grouping, following the resignation of Moaz al-Khatib, Aljazeera reported.
Sabra "was assigned today to carry out the functions of the head of the Coalition until elections for a new president," one of the Coalition's main constituent groups, the Syrian National Council, said in a statement on Monday.
Sabra is a leftist, secular opposition figure and a leading member of the Syrian Democratic People's party, a former communist party.
He was a co-founder of the Damascus Declaration opposition coalition in 2005.
Sabra has lived in Syria for most of his life and has been jailed many times for dissent.
In October 2011, he fled to Paris to help form the post-uprising opposition.