In his village near a northeast Syria oil facility, Abdulkarim Matar said he has watched his horses die because of oil spills that have polluted waterways in the resource-rich region.
The landowner said winter floods caused oil waste from a nearby storage facility to spill over onto his land.
"The oil waste... sticks to our soil and agricultural lands" the 48-year-old said, complaining of a poor harvest in the village of Abu Hajar.
"I have lost two Arabian horses because of the river water", he added, explaining they had drunk water contaminated by oil.