Mursitpinar, Turkey (CNN) -- Fighting over ISIS's attempt to seize the Syrian town of Kobani on the border with Turkey remained at a stalemate Saturday, with Kurdish fighters claiming they were fending off the Islamic militants' siege. The battle over Kobani, an enclave for Kurds, is significant because ISIS is trying to claim a vast swath of land from its self-declared capital of Raqqa, Syria, on the Euphrates River to the Turkish border, more than 60 miles away. U.S.-led coalition airstrikes in northern Syria killed at least 35 ISIS extremists Saturday, including five in Kobani, also known as Ayn al-Arab, said the London-based Syrian Observatory for Human Rights, a monitoring group that collects casualty information.
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NEW: ISIS fighters still control parts of Iraq despite U.S.-led coalition airstrikes
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Turkey sets up more checkpoints as Kurds flock to cross border into Syria
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A Kurdish enclave in Syria on the border with Turkey is under siege by ISIS
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U.S.-led coalition airstrikes hit Kobani and kill five ISIS fighters, group says
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In all, the coalition conducted nine airstrikes Friday and Saturday against ISIS targets in @placeholder, U.S. Central Command said.