Tuesday's attack on the town of Khan Shaykhun killed at least 100 people and injured more than 500, according to the Syrian opposition's health minister, Firas Jundi.
Dozens of the victims from the suspected chemical attack in Syria's Idlib are undergoing treatment in Turkey.
The US government has said it had no doubt that Syrian regime was responsible for the chemical weapons attack that killed scores of civilians in the town of Khan Shaykhun on Tuesday.
Turkey has said initial tests on victims show they suffered from chemical poisoning, likely to be the nerve agent Sarin gas
TRT World correspondent Ediz Tiyansan has gained exclusive access to the Reyhanli State Hospital in southeast Turkey, and met the victims in person.