An eleven-month-old infant was also severely wounded, according to the official statement.
The bomb exploded when a car carrying the civilians passed through the Yuksekova district.
PKK operation carried out after killing a number of its elements In recent days, where at least 10 PKK terrorists were killed during an anti-terror operation in eastern Tunceli province, according to an official statement on Monday.
The anti-terror operation continues in the region, the statement added.
In its more than 30-year terror campaign against Turkey, the PKK -- listed as a terrorist organization by Turkey, the U.S. and the EU -- has been responsible for the death of some 40,000 people, including women and children.