The soldier had left his post to examine a faulty water line and stepped on a mine when he was returning to his checkpoint.
The area was cordoned off and a search operation was launched after the incident.
Earlier, three Pakistan Army officers and one soldier were martyred and four others injured in a roadside blast in Kharqamar area of North Waziristan district.
According to ISPR, terrorists targeted a military vehicle using an improvised explosive device (IED).
Three army officers, one soldier martyred in Waziristan IED attack
The attack was carried out in the same area where security forces had conducted search operations in which a few individuals believed to be facilitators linked to terrorist activities were rounded up.
Ten security personnel have embraced martyrdom in the last one month in different attacks including the latest casualties and 35 others suffered injuries.
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