QUETTA A tanker carrying fuel for US-led coalition forces stationed in Afghanistan was partially damaged in bomb blast Tuesday in Chaman a bordering town with Afghanistan. According to police source, unidentified people had attached an explosive device to an oil tanker in Chaman which was traveling towards Kandahar from Karachi. Device exploded and partially damaged tankers back part. However, no loss of life was reported in the blast. After being repaired oil-tanker left for Afghanistan. Police have registered a case against unknown persons and started further investigation.