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Flights to U.S. face extra security after attack

Northwest Airlines passengers Richard and Dawn Griffith, of

Northwest Airlines passengers Richard and Dawn Griffith, of Pontiac, Mich., make their way through Detroit Airport. A man from Nigeria, who said he was acting on orders from al-Qaida, tried to blow up the plane just before it was to land in Detroit. (Dec. 25, 2009) Credit: AP

U.S.-bound travelers at Amsterdam's airport were undergoing body searches Saturday in line with a global U.S. request for increased security after a Nigerian transit passenger boarded a flight from here to Detroit apparently intending to blow up the aircraft, authorities said.

The additional security measure at the boarding gate for U.S. flights came as agencies in the Netherlands, Nigeria, Yemen and the United Kingdom joined forces to uncover the route and connections of Umar Farouk Abdul Mutallab, who officials said told U.S. authorities he tried to set off an incendiary device as his Northwest Airlines Flight 253 was descending.

>> PHOTOS: Terrorist attempts to blow up plane | Read story

"The extra measures apply worldwide on all flights to the U.S. as of now and for an indefinite period," said Judith Sluiter, spokeswoman for the Dutch National Coordinator for Counterterrorism.

Dutch airport, airline and military police officials declined to discuss Mutallab's case while the investigation is under way.

U.S. congressman Peter King said Mutallab boarded a flight in Lagos for the Amsterdam connection. With flights generally reported on time Friday, the Nigerian would have landed on his KLM Boeing 777 before dawn and had a layover of nearly three hours at Schiphol Airport before the Northwest Airbus A330 lifted off for the nine hour flight to Detroit.

The general alert level at the airport was not immediately raised after the incident, and security procedures for other flights remained unchanged, Sluiter said.

Schiphol, one of Europe's busiest airports with a heavy load of transit passengers from Africa and Asia to North America, strictly enforces European security regulations including only allowing small amounts of liquid in hand luggage that must be placed inside clear plastic bags.

The airport has been testing full body scanners for about a year that allow security staff to see the outline of a passenger's beneath their clothes, and intend to roll out a more complete program next year, said airport spokeswoman Mirjam Snoerwang.

Mutallab's leg was badly burned after his abortive attempt to cripple the plane, an indication that he had strapped the incendiary device onto his leg. It was unclear, however, when he attached the device or whether the body scanner would have caught it.

>> PHOTOS: Terrorist attempts to blow up plane

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