Turkish Prime Minister Recep Tayyip Erdogan has said his country must deal with the problem of Kurdish rebels in Turkey's south-east.

He gave no details of how this could be done, but his government is seeking opposition support for a negotiated settlement to the insurgency.

His comments came ahead of an expected announcement of a roadmap to peace by the Kurdish separatist group, the PKK.

The banned group is marking the 25th anniversary of its fight for autonomy.