The police and the energy firm said on Tuesday that the attack had taken place at facilities run by MOL Pak­istan Oil and Gas Com­pany, a unit of Hungary’s MOL, in the Manji Khel area of Hangu district near the Afghan border.

According to police, the militants targeted two wells, known as M-8 and M-10, with hea­vy weapons, including rocket-propelled grenades.

The outlawed Tehreek-i-Taliban Pak­is­tan (TTP) claimed res­ponsibility for the attack, reports said.

Four members of the Frontier Constabulary, identified as Hamzali, Waleed, Shariatullah and Zafar Alam, were among the six security personnel killed in the attack. Two private guards, identified as Sabz Ali and Aseel Khan, were also killed in the incident.