Hezbollah's Al Manar TV says no explosion occurred in southern Damascus district

BEIRUT (Reuters) - Hezbollah's Al Manar TV channel denied any explosion took place in southern Damascus's Sayeda Zeinab district, after a monitoring group reported a car bomb blast there which it said caused casualties. Lebanese Shi'ite group Hezbollah is fighting in Syria on the side of President Bashar al-Assad. (Reporting by John Davison; Editing by Toby Chopra)