Members of the Kurdish YPG -- or People's Protection Units -- have taken control of 70 villages in the Syrian province of al-Hasakah, the Syrian Observatory for Human Rights said Thursday.
The Observatory claims that 132 Daesh militants have been killed since Saturday.
Meanwhile, CNN said Daesh militants are holding many more Assyrian Christians hostage than previously thought.
Osama Edward, founder of the Assyrian Human Rights Network, told CNN that the extremist group is now believed to have 150 hostages, citing the latest information from the network's team on the ground.