Accountability is needed for the horrible attacks which killed dozens in Syria, says the UN Special envoy.
Chemical weapons and follow-on airstrikes are thought to be the cause, according to the Britain-based Syrian Observatory for Human Rights.
The attacks come just hours before 70 countries are set to convene in Brussels for talks on Syria's political future.
Staffan de Mistura, the U.N. Special Envoy for Syria, is horrified by the events.
IN: "What happened...
OUT: ...and accountability."
DUR: 19
U.N. special envoy for Syria Staffan de Mistura still hopes a political solution is possible.
IN: "Even when...
OUT: ...political solution."
DUR: 20
European Union vice president for foreign policy Federica Mogherini is putting her faith in a political solution ahead of hosting a major conference on Syria.
IN: "I hope...
OUT: ...of Syria."
DUR: 15
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