A Kurdish official says fighters are sharing information with the U.S.-led coalition to coordinate strikes against Islamic State militants in the Syrian border town of Kobani.

Nawaf Khalil, spokesman of the Kurdish Democratic Union Party, said Friday that coordination began last week as IS fighters closed in on the town that lies near the Turkish border.

Kurdish fighters in Kobani mostly belong to the party's military wing.

The battlefield coordination could further complicate relations between Washington and Ankara, which views the Syrian Kurdish party with suspicion. Turkey believes the party is an extension of the Kurdish PKK, which waged a long and bloody insurgency in Turkey and is designated a terrorist group by the U.S. and NATO.