KOHAT, July 15: US FBI and Pakistani military intelligence agencies moved into action on Thursday in the light of information received about the whereabouts of the mastermind behind the London blasts and extended their investigations to the tribal areas of the North and South Waziristan agencies, highly placed sources told Dawn.

The counter-intelligence unit of the military intelligence met at the office of the field commander of the operation currently under way in the two tribal areas and shared details of an important communiqué, written in Arabic and Persian languages, seized from two suspects a couple of days ago.

The suspects, an Afghan refugee and a Pakistani resident of the Orakzai Agency, were arrested by Hangu police on July 12 during a routine checking of vehicles coming from Peshawar.

Both suspects have been taken to Peshawar by military officials for questioning by a joint interrogation team. The Hangu police had not registered any case against them and handed them over to intelligence officers on Thursday.

The suspects, identified as Abdul Wali, son of Maulvi Mirza Mohammad, resident of Shamshatu refugee camp, Peshawar, and Samiullah, son of Mohammad, resident of Ghiljo, Orakzai Agency, were carrying an important message to some foreigners hiding in the North Waziristan Agency, they told their interrogators.

SUSPECTS LIST: British police have given Pakistan a list of suspects with possible links to the London attacks, officials said on Friday, as two religious schools denied they had hosted one of the bombers, AFP adds.

Authorities are pursuing information on 22-year-old British suicide attacker Shehzad Tanveer, who reportedly studied at a religious school in Pakistan last year, according to security officials.