The device exploded after being attached to the vehicle they were travelling in on Saturday evening, Rehman Gul Khattak, senior government official for North Waziristan, said in a statement.
“The laborers were working at an under construction post for the Pakistan army,” Khattack said.
Amir Muhammad Khan, a senior police official in the area, confirmed the bomb blast and the number of casualties to AFP.
“Heartbreaking to know about the terrorist attack in North Waziristan which claimed the lives of 11 innocent laborers. Strongly condemn this senseless act of violence and stand in solidarity with the families affected,” caretaker Prime Minister Anwaar-ul-Haq Kakar posted on X, formerly known as Twitter.