ISLAMABAD, Pakistan, July 30 (UPI) -- Unidentified attackers blew up a NATO oil tanker Friday near Quetta, Pakistan, while the rig's driver was refueling the vehicle, police said.

The condition of the driver was unknown.

Officials said police arrested two suspects, Pakistan's English newspaper Dawn reported.

The Afghanistan-bound tanker was traveling from Karachi and stopped for gas in the Akhtarabad area of Quetta, the capital of Balochistan province, officials said.