UN 'collecting evidence' on Syrian massacres

The head of a UN commission investigating abuses in Syria says it has been collecting evidence about 20 massacres, including three in the central city of Homs since December.
Paulo Sergio Pinheiro says the destructive stalemate between president Bashar Assad’s regime and anti-government rebels is fuelling a rise in mass killings, with the violence spreading to such an extent that “there are no more enclaves of stability in Syria today.”