BEIRUT (Reuters) - The Syrian government and rebels traded blame on Thursday for a huge explosion which killed 16 people in the city of Hama, as a two-week-old U.N.-backed ceasefire looked increasingly fragile. U.N. Secretary-General Ban Ki-moon accused Damascus of breaking its pledge to withdraw heavy weapons and troops from towns, saying he was "gravely alarmed by reports of continued violence and killing in Syria." Syria blamed "terrorist" bomb-makers for Wednesday's blast. ...
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