PESHAWAR - Some unknown armed persons attacked another NATO oil supply container on Ring Road, Chamkani area, on Monday. Police sources said that unknown persons first removed the engine and chases number of the container and later fired a rocket at it. Soon after the attack, the Fire Brigade Squad rushed to the site and started extinguishing the fire. The local police cordoned off the area and launched a search operation in the area, however, no arrest has been so far made in this regard. No person or group has so far claimed responsibility for the attack. Recently the government has claimed to have flushed out all militants from Jamrud and Bara regions of Khyber Agency but the militants network in the narrow tribal strip of Dara Adam Khel is still intact.