ISLAMABAD — Dozens of Muslim militants with European citizenship are believed to be hiding out in the lawless tribal area of northwestern Pakistan, Pakistani and Western intelligence officials say, training for missions that could include terror attacks in European capitals.
Officials have used phone intercepts and voice tracking software to track militants with ties to Britain and other European countries to areas along the Afghan border. Al-Qaida would likely turn to such extremists for a European plot because they can move freely in and out of Western cities.
Fear that such an attack is in the planning stage has prompted the U.S. State Department to advise Americans traveling in Europe to be vigilant. American and European security experts have been concerned that terrorists based in Pakistan may be plotting attacks in Europe with assault weapons, similar to the deadly 2008 shooting spree in Mumbai, India. U.S. intelligence officials believe Osama bin Laden is behind the plots.
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A senior official of Pakistan's Inter-Services Intelligence agency, or ISI, told The Associated Press that there are believed to be "several dozen" people with European citizenship - many of Pakistani origin - among the Islamic extremists operating in the lawless border area.
The official, who spoke on condition of anonymity because he was not supposed to talk about classified information to the media, said foreigners in the area also include Chechens, Uzbeks, Arabs and Turks, one of whom was a former F-16 pilot in the Turkish air force.Story: French terrorism suspect arrested in Italy
"That shows you that some of the people who are coming are very well educated," he said.
The official also said Pakistan authorities arrested four Russian jihadis who infiltrated into Pakistan along with their families. "It was very surprising for us but they come thinking this is the pure (Islamic) ideology that they are seeking," he said.
Britain's communications monitoring agency, the Government Communications Headquarters or GCHQ, estimates there are as many as 20 British-born militants in the border area, especially in the North Waziristan district that has been the focus of recent missile strikes carried out by unmanned aircraft operated by the CIA.Vote: Would a travel alert keep you from going to Europe?
Mobile phone communications have been tracked from the border area to points in Britain, particularly England's Midlands, where there is a heavy Pakistani immigrant population, according to a British government official who spoke on condition of anonymity because the terror plot investigation is ongoing.
Voice-printing software enables British intelligence to identify and track specific individuals believed connected to terror plots, he said.
In addition, a spokeswoman with Germany's Federal Criminal Police Office said last week that there is "concrete evidence" that 70 people have traveled from Germany to Pakistan and Afghanistan for paramilitary training, and that about a third of them have returned to Germany.Story: Pakistan says NATO supply route to reopen
The presence in the border areas of Islamic militants with Western connections has been known for years.
Faisal Shahzad, the Pakistani-American who confessed to the May 1 failed car-bombing in New York's Times Square, said the Pakistani Taliban trained him for the mission. Shahzad is scheduled to be sentenced Tuesday in a U.S. court.
During an operation last year, Pakistani soldiers discovered a passport in the name of Said Bahaji, which matches the name of a member of the Hamburg, Germany, cell that conceived the Sept. 11, 2001, terrorist attacks in the United States. Bahaji is believed to have fled Germany shortly before the attacks in New York and Washington.
A Spanish passport found by the Pakistani military during the same operation bore the name of Raquel Burgos Garcia. Spanish media reported that a woman with the same name was married to Amer Azizi, an alleged al-Qaida member from Morocco suspected in both the 9/11 attacks and the Madrid train bombings in 2004.
Concern over the pool of Europeans capable of carrying out attacks abroad rose about a month ago when U.S. intelligence heard of a European plot and began monitoring the people involved, according to two U.S. officials. The CIA recently stepped up airstrikes from unmanned aircraft in northwestern Pakistan, in part to disrupt the plot. In September there were at least 21 attacks - more than double the highest number fired in any other single month.
A Pakistani official said some information about the plot came from a suspect who had been interrogated at the military prison at Bagram Air Field north of Kabul, the main U.S. and NATO base in Afghanistan. A U.S. official identified him as Ahmed Siddiqui, a German citizen of Afghan origin who was captured in Afghanistan in July.
The plot apparently called for several gunmen to fan out across Germany, Britain and France in hopes of launching attacks similar not only to the Mumbai assault but also to so-called "swarm attacks" that extremists have mounted in Kabul and other Afghan cities. The tactic calls for small teams with automatic rifles, grenade launchers and suicide vests to strike simultaneously at several targets in a city and cause as much havoc as possible before they can be killed or captured.Pakistan's former strongman launches political party
Reports of the alleged plot again cast the spotlight on the Pakistani district of North Waziristan, where Washington believes al-Qaida and its allies plan attacks against U.S.-led forces in Afghanistan as well as targets abroad.
Although the Pakistani military has mounted ground operations elsewhere in the border region, it has been reluctant to do so in North Waziristan, saying its forces are stretched too thin. Some within Pakistan's military and intelligence establishment privately say an escalation in drone attacks in North Waziristan and recent cross-border incursions by NATO helicopter gunships are aimed at forcing the army into an operation.
However, the incursions have frayed relations between Pakistan and the U.S. and NATO. Pakistan has blocked its main border crossing to NATO supply trucks for the past four days in response to alleged incursions last week by NATO helicopters, including firing that shot dead three Pakistani paramilitary soldiers who had fired warning shots at the choppers.
Associated Press writer Paisley Dodds contributed to this report from London.
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