Iraqi Kurdish fighters will be deployed to Kobani within hours to bolster the town's defenders in their battle against Islamic State, a senior Iraqi Kurdish official with knowledge of the operation said.

The reinforcements will remain under the command of the Kurdish Regional Government in Iraq, said the official with knowledge of the operation, who requested anonymity. He did not say how many of the fighters, known as the peshmerga, would deploy or how they would reach the northern Syrian town.

Syrian Kurdish leaders said there's no agreement on the deployment. "When contacts are made with the peshmerga, only then will we agree on how the fighting will happen," said Enwer Muslim, a senior official in Kobani.