The Taliban frequently takes responsibility for attacks on NATO supply tankers in Pakistan [AFP]

At least four people have been killed after a convoy of NATO fuel tankers was attacked in Pakistan's northwest.

While estimates vary, between 12 and 25 lorries bound for Afghanistan were set ablaze at a terminal during the attack, which occurred near the city of Peshawar on Friday.

"More than two dozen militants entered the terminal and planted timed devices on 12 out of a total of 18 fuel tankers parked at the terminal," Imtiaz Shah, a senior police official, told the AFP news agency.

He said that one device did not explode, and that two drivers and two guards were killed in the raid. Another driver was hurt in the attack.

Empty shells from Kalashnikov rifles and human blood were visible at the site of the attack.

Liaquat Ali Khan, a police officer, told the Associated Press news agency that around 15 fighters armed with rockets carried out the attack.

No group has claimed responsibility for the attack, but suspected Taliban fighters and criminals often attack lorries carrying supplies for US and NATO troops in Pakistan.

The supplies arrive in Pakistan's port city of Karachi and travel overland to Afghanistan.

Source: Agencies