"We haven't found any sanctuary, so far, where such items probably could be made," he said, adding that Pakistan's military didn't know where the sophisticated bomb-making technology was coming from.
Anwar, the Afghan official, who has worked in intelligence for 27 years, acknowledged that there was no smoking gun linking insurgents in Afghanistan to Pakistan's military intelligence.
Yet despite the Pakistani military's assertions, increasing numbers of guerrillas are crossing into eastern and southern Afghanistan, Anwar and other Afghan officials said.
"Last year, the enemy wasn't able to attack our checkpoints or plant so many mines," Anwar said. "This year, they have become very strong."
Anwar said reports from intelligence agents across the border and 50 captured prisoners describe an extensive network of militant training camps in areas of Pakistan's federally administered North Waziristan tribal area where government forces are firmly in control.
Tauda China, a village in the area, which is home to Pushtun tribes, is the site of one camp where Inter-Services Intelligence agents trained militants, Anwar said. He alleged that there were as many as six other camps in the surrounding valley, which is closed to outsiders and guarded by Pakistani troops and armed Afghans.
"Our agents have been there," Anwar said. "They tried to enter the valley and the soldiers didn't allow them."
Zulfiqar Ali, a Pakistani journalist who freelances for the Los Angeles Times, recently reported that at least some training camps that were closed on Musharraf's orders have been reopened.
The government denies that there are training camps. But Ali, who also writes for the Pakistani magazine the Herald, visited one camp and found armed militants with fresh recruits as young as 13 undergoing 18-day "ideological orientation" and weapons training. Several sources said 13 militant camps had been reactivated in the Mansehra region alone in the first week of May.
Militants said their official funding had continued during Musharraf's ban, but the camps had been abandoned and falling apart until this spring.
"Our transport fleet is back, electricity has been restored and the communications system is in place," a militant guide reportedly boasted to Ali.
The reported reopening of militant training camps in Pakistan coincides with the discovery of the high-tech bombs in Afghanistan.
