In mid-march, a village called Sarmin, in Northwestern Syria was attacked by bombers from a helicopter. There is no explosion, no fire but it was the most worst form of attack where the civilians did not injured by physical wounds. But their struggle started after a few minutes who rushed to the nearest hospitals as they suffered from various ailments such as severe coughing, burning sensation in eyes and throat and most of them were unable to breathe. 

“There was a very strong chlorine smell there,” Muhammad Yazan, a local activist, told Human Rights Watch. Yazan went to the impact site in Sarmin, as well as to another village that was attacked in Idlib province. “One of our team members passed out due to the smell. It was horrible. My eyes were burning. I wanted to throw up. My skin felt like I had rashes.”