NEW : Kurdish fighters still control parts of Turkey despite U.S.-led coalition airstrikes . Turkey sets up more checkpoints as Kurds try to cross border into Turkey . A Kurdish enclave in Syria on the border with Turkey is under siege by ISIS . U.S.-led coalition jets hit Kobani and kill 20 ISIS fighters , group says .
NEW : ISIS fighters still control parts of Iraq despite U.S.-led coalition airstrikes . Turkey sets up more checkpoints as Kurds flock to cross border into Syria . A Kurdish enclave in Syria on the border with Turkey is under siege by ISIS . U.S.-led coalition airstrikes hit Kobani and kill five ISIS fighters , group says .