At least 14 elements of the Syrian regular army were killedand others injured when Islamic brigades detonated powerful explosives in a tunnelthey dug beneath the historic Carlton Hotel in Aleppo old city, according to the Syrian Human Rights Observatory.The London-based Observatory said clashes are raging in Aleppo between fightingbrigades and government troops in Sheikh Maqsoud and Sheikh Tahaneighbourhood, adding that the Islamic brigades also targeted army troops in AlAmiryah neighbourhood. Source: QNA