In the first incident, a land mine exploded at around 2:30 p.m. local time (1130 GMT) on a railway between the villages of Kecikayasi and Caybagi in the Saray district of Van province, causing a freight train to derail.
The crew of the train was not injured, but four wagons were damaged.
The PKK militants set off the second bomb 500 meters away from the site of the first attack when the Turkish military vehicle was approaching to investigate the scene.
One soldier with serious injuries was flown by helicopter to Van city’s Yuzuncu Yil University Hospital for treatment. The other wounded soldiers were transported to a military hospital.
Meanwhile, security forces have launched a large-scale investigation into the incidents, and a manhunt is underway to apprehend the perpetrators.
The PKK is listed as a terrorist organization by much of the international community, including Turkey, Iran, the United States, and European Union member states.
Over 40,000 people have lost their lives since the PKK launched its armed campaign against Ankara in 1984.
Six Turkish soldiers have been injured by a roadside bomb planted by members of the outlawed Kurdistan Workers' Party (PKK) in the eastern province of Van.
The soldiers were heading to the site of a bombing of a railway on Saturday when a remote-controlled bomb was detonated as their vehicle passed, the Turkish newspaper