Seven children lost their lives and another child was injured after a water tank's walls collapsed over them in the Ambaar area of Mohmand district on Saturday.
Rescue sources said the incident occurred when two walls of the water tank suddenly collapsed on the children as they were playing around it.
Following the incident, rescue personnel arrived at the site and pulled a child out from underneath the rubble.
The ages of the deceased and injured children are said to be between 4 and 12 years.