An attack in the northwestern Idlib province that killed at least 30 people on Sunday has been blamed on the Syrian government.
The attack was carried out by pro-government forces, according to local media.
The Idlib Province is under the control of the Free Syrian Army (FSA), which has been waging a war against President Bashar al-Assad’s government for years.
The assault killed at most 10 people and injured many more.
The Syrian Observatory for Human Rights said that a doctor who treated the victims described them as suffering from suffocation.
The Observatory said the attack occurred in the town of Zaitouneh, near Idlib City.
According to reports, the attack was coordinated by the Free Syria Army ( FSA ), which has also been carrying out chemical attacks against civilians and other rebel groups in Idlib.
The FSA has claimed responsibility for several chemical attacks in the region.
The U.N. says more than 300 people have died since March.
The United States, Russia and Iran have all said they believe that the attack is a response to the Syrian regime’s continued use of chemical weapons.