Islamabad: Pakistan's Foreign Ministry has denied that any "foreigner" has access to its nuclear blueprints.

The ministry's comments yesterday follow reports that a network led by the country's top former nuclear scientist Abdul Qadeer Khan may have given nuclear weapon plans to Iran and Libya.

Khan confessed in 2004 to having transferred sensitive technology to those countries and North Korea.

Former UN arms inspector David Albright also accuses Khan's network of leaking weapon designs.

Swiss officials in 2004 allegedly seized nuclear blueprints from three brothers accused of smuggling for the network.

The Pakistani Foreign Ministry said no one had access to its blueprints and asked why the Swiss files were destroyed.

Lahore (AP) Police acting on a tip from intelligence agents raided militant hideouts in eastern Pakistan, arresting five suspected radicals and seizing explosives, an official said yesterday.

The men were members of an outlawed Sunni militant group who were planning to target government buildings, security agencies and other installations, said Chaudhry Manzoor of the Federal Investigation Agency. The men were arrested this week and were still being questioned by police, he said.

Authorities also seized a significant amount of bomb-making material from militants' hideouts in the eastern city of Lahore and elsewhere, he said.