Islamic State fighters have killed more than 150 people in Kobani and nearby villages in the past two days, the New York Times reports. After sneaking into the town disguised as local rebels. ISIS militants set off car bombs and gunned down civilians in the street.

A pair of Islamic State fighters attributed the militant group's recent withdrawal from Kobani to U.S.-led airstrikes, The Guardian reports. ISIS threatened to overrun the Syrian border-city as recently as October.

Kobani, where tens of thousands have been forced to flee their homes, endured some of its "fiercest fighting in days" over the weekend as the battle between regional Kurds and ISIS forces extends into its fourth week. In what's been described as a crucial symbolic measure, the U.S. dropped 27 bundles of supplies to support the Syrian Kurds fighting the Islamic State militants.