London, Feb.8 : Iran's Defence Minister Ahmad Vahidi has opened two production lines for the manufacture of aircraft, especially advanced unmanned drones, which could carry out "surveillance, detection and even assaults with high precision," the country's FARS news agency has reported.

According to The Telegraph, Iran has announced a spate of technological advances and military achievements in the run up to the 31st anniversary of the Islamic revolution on February 11.

On Sunday, President Mahmoud Ahmadinejad deepened tensions with the West over Iran's atomic programme when he ordered scientists to enrich stockpiles of uranium to the higher level needed to produce nuclear power.