Syrian Rebels Used Toxic Gas on Civilians in Aleppo, Russia Says
Attack was launched by Nour el-Deine Zengi, a militant group considered by the U.S. as part of moderate opposition, says Russian general.

The Russian military says Syrian militants have used a toxic agent against civilians in Aleppo, killing seven and sickening another 23 people.
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The head of Russian military's Reconciliation Center at the Hemeimeem air base in Syria, Lt. Gen. Sergei Chvarkov, said Wednesday that the rebels struck a residential area in eastern Aleppo with a toxic agent. Chvarkov didn't identify the substance used in Tuesday's attack, but said the victims suffocated or suffered lung burns.
Chvarkov said the attack was launched by Nour el-Deine Zengi, a militant group he said has been considered by the U.S. as part of moderate opposition. He said the Russian military had informed the U.S. about the incident.
Nour el-Deine Zengi didn't immediately issue a response to the allegations.