Amnesty International say they have the names of 10,000 civilians who have been killed so far during the conflict in Syria.
Amnesty's senior crisis adviser, Donatella Rovera, told the Today programme that the situation is "quite clear" - the "vast majority" of people were killed by government forces or government-armed militia.
"The monopoly of the violence has been firmly in the arms of the government forces, there has been surprisingly little sectarian violence until now," she said.
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