Unidentified assailants in southwest Pakistan set two oil tankers on fire Wednesday in the latest attack targeting the supply line for NATO forces fighting in Afghanistan.

A local police official told the French news agency, AFP, that gunmen on motorcycles signaled for the drivers to stop, and opened fire as they continued driving.   There were no casualties reported, and the culprits fled the scene.

The attack took place near the town of Dhadar in Baluchistan province.

Insurgents frequently target NATO supply trucks along routes heading west into Afghanistan.

Some information for this report was provided by AFP.