PARIS (AP) — French police discovered bomb-making materials in an underground parking lot near Paris as part of a probe of an "extremely dangerous terrorist cell" linked to an attack on a kosher grocery, a state prosecutor said Wednesday.
Interior Minister Manuel Valls said some of the 12 suspected cell members arrested over the weekend appeared to have plans to go to Syria to fight in its civil war. Valls, quoted in an interview posted Wednesday on the website of Paris Match magazine, said some had "unquestionably" spent time in Tunisia and Egypt. He did not elaborate.
Paris Prosecutor Francois Molins said the discovery of the bomb-making materials late Tuesday in Torcy, east of the capital, led authorities to invoke a rarely used legal clause to allow them to extend questioning of the 12 suspects by a day — and possibly two.
Authorities have been on high alert for possible terror attacks by radical Islamists after a Frenchman who claimed links to al-Qaida shot and killed three Jewish children, a rabbi and three paratroopers in southern France in March.
A counterterrorism official, speaking only on condition of anonymity because he was not authorized to speak publicly on the matter, said authorities were working to try to verify a possible link to Syria.
The case amounts to one of the biggest break-ups of a suspected Islamic terror cell in years in France, and the international link revived memories of the height of the Iraq war in the mid-2000s — when counterterrorism authorities dismantled a string of feeder cells that sent or plotted to send fighters to join the combat against U.S.-led allied forces there.
French authorities have been particularly concerned that the young militants might gain important skills in combat, bomb-making and other terrorism tactics abroad — then later return home to carry out attacks.
Investigators were led to the parking lot through information collected during questioning of the suspects, who were arrested in weekend raids across France in a probe of a firebombing of the grocery north of Paris last month, Molins said.
Authorities believe the two organizers of the Sept. 19 grenade attack in Sarcelles are in custody, Molins said. However, he suggested that the two people who actually carried it out could still be at large.
"When there is a serious risk of the imminence of a terrorist action in France, police custody — after 96 hours — can be extended by 24 hours," Molins told reporters at the downtown Paris courthouse.
It was only the second such extension since a 2006 revision to France's powerful anti-terrorism legislation. In most terrorism cases, police can detain suspects for questioning for up to four days before preliminary charges are filed or the suspects are released for a lack of enough evidence to merit prosecution.
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