Does the Muslim world have the leaders it needs?

Members of the Organisation of Islamic Cooperation meet in Istanbul.

As more than 30 leaders from Islamic countries gather in the Turkish city of Istanbul, the main message has been one of unity.

But many say it's hard to disguise the fact the Muslim world is deeply divided.

The leaders of two of the biggest countries in the Middle East, Saudi Arabia and Iran, are locked on opposing sides of the conflicts in Syria and Yemen.

Meanwhile, the Islamic State of Iraq and the Levant (ISIL) and its ideology threatens to destabilise or consume nations around the world.