Summary
Street fighting raged between Kurdish defenders and ISIS militants who advanced into Kobani on Monday after subjecting the Syrian border town to an assault lasting almost three weeks, a monitoring group said.
ISIS had earlier forced thousands more of Kobani's mainly Kurdish inhabitants to flee for their lives across the nearby border into Turkey.
ISIS also fought intense battles over the weekend for control of Mistanour, a strategic hill overlooking Kobani.
Turkey's pro-Kurdish Peoples' Democratic Party called for street demonstrations in Turkey to protest at Islamic State's assault on Kobani, where the situation was "extremely critical".
Militants also carried out two suicide attacks in the northeastern Syrian city of Hasakah, the Observatory said, killing at least 30 people.
Beheadings, mass killings and torture have spread fear of ISIS across the region, with villages emptying at its approach and an estimated 180,000 people fleeing into Turkey from the Kobani region.
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