A Turkish official said on Monday Iraqi Kurdish peshmerga fighters were free to move through Turkey to Syria "as soon as they are ready" after a Syrian Kurdish leader accused Ankara of stalling on an agreement to allow them passage to the besieged Syrian border town of Kobani.

Saleh Moslem, co-chair of the Kurdish Democratic Union Party (PYD), told Reuters on Monday that the peshmerga had been ready to go into Kurdish-defended Kobani for three days.

"But we don't know what is going on between them and Turkey. The delay is because of Turkey," said Moslem, whose party's armed wing, the YPG, has been battling Islamic State militants in Kobani for a month.