The Turkish government says four suspected bomb makers have been killed and 17 people injured in a blast in the east of the country.
The Interior Ministry said it happened as militants from the banned Kurdistan Workers Party (PKK) were loading explosives onto a truck at Sarikamis.
Electricity in the village was cut and homes near the site suffered damage.
The material is said to have been destined for an attack on security forces.
Witnesses apparently heard the explosion in the region’s biggest city Diyarbakir, some 25 kilometres away.
Two of the wounded were said to be in a critical condition.
The blast followed an earlier car bomb near a military facility in a suburb of Istanbul that injured seven people.