Isis chief calls Muslims to 'state'
The leader of the extremist group that has swept over much of northern Syria and Iraq has called on Muslims to immigrate to the territory his group has seized to help build an Islamic state.
The 19-minute tape from Abu Bakr al-Baghdadi comes two days after the Islamic State of Iraq and the Levant (Isis) declared an Islamic state, or caliphate, in the land it controls.
It also proclaimed al-Baghdadi the caliph and demanded that all Muslims around the world pledge allegiance to him.
In his first remarks since then, al-Baghdadi made a special appeal to those with practical skills - scholars, judges, doctors, engineers and people with military and administrative expertise - to "answer the dire need of the Muslims for them".
He also called on jihadi fighters to escalate combat in the holy month of Ramadan, which began on Sunday.
"In this virtuous month or in any other month, there is no deed better than jihad in the path of Allah, so take advantage of this opportunity and walk the path of you righteous predecessors," he said. "So to arms, to arms, soldiers of the Islamics, fight, fight."
The audio was posted on militant websites where the group has issued statements in the past and the voice resembled that on other audiotapes said to be al-Baghdadi, an Iraqi militant who has rarely been photographed or appeared in public.