BEIRUT, June 27 (Reuters) - A suicide bomb hit the central neighbourhood of Bab Touma in Damascus, a famous Christian quarter of the capital's Old City, state television said on Thursday.
At least four people were killed and several more wounded, Syria TV said.
The blast hit near an ancient church on the Old City's famous "Straight Street" and a luxury restaurant that was once frequented by President Bashar al-Assad and his inner circle.
News outlets loyal to the rebels fighting for Assad's ouster said the blast was caused by a mortar bomb.
More than 100,000 people have died in Syria's two-year conlict, according to the Syrian Observatory for Human Rights, a monitoring group for the opposition. (Reporting by Erika Solomon, Editing by Mark Trevelyan)