(CNN) -- ISIS has apparently taken a heavy hit over the past several days. The bodies of at least 70 fighters for the terror group have been dropped off over four days at a hospital in the Syrian town of Tal Abyad, a Syrian opposition group told CNN. Tal Abyad is on the Turkish border and about 80 kilometers (50 miles) from Raqqa.
The Islamic State in Iraq and Syria took control of Raqqa last year. ISIS uses the once-liberal city as a kind of headquarters where it applies its hardline interpretation of Islamic law, terrorizing the population.
Kurdish and Iraqi forces have been battling ISIS on the ground. With the help of airstrikes from an international coalition led by the United States, the foot soldiers are now focused on pushing ISIS back from its relentless attempt to take Kobani, a Kurdish town on the Syrian-Turkish border.
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It's unclear who dropped the bodies of the ISIS fighters off at the hospital, but it was likely other fighters from the militant group, because they control Tal Abyad.
Sources who work in local medicine confirmed the events to the Syrian Observatory for Human Rights, a group that promotes ending the longstanding regime of Syrian President Bashar al-Assad. The group is based in London and first formed when violence broke out in Syria in 2011, much of it geared toward ousting al-Assad.
Kobani now is the scene of an unrelenting battle. On Sunday, the brief moments of calm were punctuated by sounds of firing from both sides. ISIS has shelled the city at least 16 times, sources say, while coalition planes fly low overhead.
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http://edition.cnn.com/2014/10/19/world/meast/isis-kobani/index.html