chlorine gas

Chlorine gas dropped on Aleppo by Syrian regime, watchdog says

Syrian regime helicopters have dropped at least four barrel bombs containing poisonous chlorine gas on rebel-held eastern Aleppo, a monitoring group says.

Syrian regime drops chlorine gas in Aleppo, activists say

Syrian regime helicopters dropped on Tuesday barrel bombs containing chlorine gas on al-Sukari neighbourhood in the rebel-held east side of Aleppo, activists said.