Two Turkish soldiers were killed in an attack on a military vehicle in southeastern Sirnak province on Tuesday morning, security sources told Anadolu Agency.
Two people, including a soldier and a village guard were also wounded in the attack.
Members of the outlawed Kurdistan Worker's Party (PKK) are suspected to be behind the attack, the sources said.
The military vehicle was attacked with rocket-propelled grenades and guns in the vicinity of Arakoy village after an explosive device detonated, sources added.
Security forces have launched an operation backed by aerial support in the area to nab the suspected PKK militants.
The fresh attack came two days after two soldiers were killed and 24 others wounded in a suspected suicide attack in eastern Agri province. The Agri Governor’s Office had blamed that attack on the PKK.
The PKK is listed as a terrorist group by Turkey, the US and the European Union.
Security forces have come under attack across the country since the July 20 Daesh-suspected Suruc bombing in southeastern Turkey, which killed 32 people.