ISIS has committed its second-biggest civilian massacre in Syria with an attack on the town of Kobani and a nearby village, killing at least 146 civilians so far, an activist group monitoring the war said Friday.

A separate ISIS attack on government-held areas of the northeastern city of Hassakeh was reported to have forced 60,000 people to flee their homes, the United Nations said, warning that up to 200,000 people may eventually try to flee.

The attack on the predominantly Kurdish town of Kobani and the nearby village of Brakh Bootan marked the biggest single massacre of civilians by ISIS since it killed hundreds of members of the Sunni Sheitaat tribe in eastern Syria last year, the Observatory's Abdulrahman said.

ISIS advanced rapidly last month, seizing cities in Syria and Iraq.

...