Kurdish militants killed ten soldiers and wounded more than 60 others in an attack on a Turkish army convoy on Tuesday.
Security sources quoted by the Reuters news agency attributed the attack to the Kurdistan Workers Party, or PKK.
The convoy was travelling on a motorway between the provinces of Bingol and Mus when it was hit by a rocket-propelled grenade.
The PKK is an armed separatist group that took up arms in 1984 with the aim of carving out a Kurdish state in Turkey’s east.
The conflict has claimed more than 40,000 lives. Some 700 people have been killed in the past 14 months alone, making it the deadliest period in the region for than a decade.