Syrian rebels detonate a huge bomb on Thursday 8 May underneath a hotel in Aleppo used by President Bashar al-Assad's forces, destroying it and damaging other buildings on the edge of the city's medieval citadel. The explosion appeared similar in execution to a blast on Tuesday 6 May outside the town of Ma'arat al-Nu'man in the north-western province of Idlib, where explosives were buried in a tunnel under a checkpoint