DAMASCUS, Syria, March 17 (UPI) -- The Syrian Observatory for Human rights said six civilians were killed when they inhaled chlorine gas after the regime of President Bashar al-Assad allegedly dropped barrel bombs.
The victims were a husband, his wife, their three children and their grandmother. Dozens suffered from suffocation when the bombs were dropped on the town of Sarmin in northwest Syria on Monday, according to the monitoring group.
At least 19 people were killed in several villages and towns in the region.
An unverified, graphic video of the attack was released.
"This was a bombing by the apostate and criminal Assad regime, which is supported by the west and Arab states," the narrator in the video said. "These are children, in the chemical attack on the city of Sarmin."
A Syrian military sourced denied the claim.
"We confirm that we would not use this type of weapon, and we don't need to use it," the source said.
Assad also previously dismissed the accusation that the Syrian army uses barrel bombs – crude explosive devices filled with oil or forms of shrapnel sometimes loosely dropped from high altitudes via helicopter which may cause indiscriminate damage.
Assad's denial of the use of barrel bombs counters multiple documentations of events, including a report that more than 70 people died when barrel bombs hit Aleppo in December of 2013.