Unknown militants attacked on Monday five oil tankers carrying supplies from Pakistan to NATO occupation troops in Afghanistan.

Unknown militants attacked on Monday five oil tankers carrying supplies from Pakistan to NATO occupation troops in Afghanistan.

The incident took place near the southwestern Pakistani town of Mithri, some 230 kilometers far from Quetta, the capital of the restive oil and gas-rich Baluchistan province which borders Iran and Afghanistan.

"Unknown gunmen fired at five NATO oil tankers. Two of them caught fire while oil leaked from three others," district administration chief Muhammad Azam told AFP news agency.
"There were no injuries to drivers," he said.
Local intelligence officials confirmed the attack.

NATO trucks and oil tankers are regularly the targets of arson attacks blamed on gunmen attempting to disrupt two key supply lines that cross western Pakistan bound for occupation troops in neighboring Afghanistan.

Most supplies and equipment required by coalition troops in Afghanistan are shipped through Pakistan, although US troops increasingly use alternative routes through central Asia.