Kurdish rebels have attacked a military outpost in eastern Turkey killing four soldiers and wounding several, officials sources say.
They say militants from the banned Kurdistan Workers' Party (PKK) used rocket-propelled grenades and assault rifles in the attack near Nazimiye.
The government has intensified efforts to end the insurgency in recent months.
The PKK has been fighting for autonomy in Turkey's largely Kurdish south-east for more than two decades.
Officials quoted by the semi-official Anatolia news agency said the rebels had staged the attack at about midnight on Friday, and that the fighting had continued until dawn.
Several rebels are reported to have been killed.
There have been a number of clashes between rebel and government forces since the Constitutional Court banned Turkey's pro-Kurdish DTP party in December, saying it had links with the rebels.