Five children were among the 16 people killed when militants blew up an oil tanker carrying fuel for NATO troops in Khyber Agency in Pakistan, officials said.
Officials said a remotely operated device placed under the oil tanker about five miles east of the Afghan border Saturday caused the explosion. The victims died when they tried to collect some of the spilled oil, which caught fire, CNN reported.
NATO officials declined comment on the incident.
Shafeer Ullah Khan, a top government official of Khyber Agency, said in another incident Friday, nine oil tankers carrying fuel for NATO caught fire after insurgents detonated a remotely controlled device. He said the tankers were parked at the border, waiting for clearance to enter Afghanistan.
It was not immediately clear who was behind either attack.
Dozens of oil tankers hauling fuel for NATO forces in Afghanistan have been attacked in Pakistan and militants in the region regularly target Pakistani security forces and supply trucks headed to Afghanistan to undermine U.S. and NATO efforts.
At least 29 people have died in similar attacks since October. Pakistani firms frequently operate the tankers through contracts with NATO.