Authorities evacuated a terminal at London's Heathrow Airport for about four hours Tuesday after a man dropped off a package near the Air Algeria and Lufthansa desks and ran away, airport staff members said.
One man was in custody in a West London police station, authorities said. Police would not discuss the contents of the package.
About 2,000 people were ordered out of Terminal Two, which houses many European carriers, around 1 p.m., police said.
The package was found near the Air Algeria and Lufthansa desks, according to airport staff members, who spoke on condition of anonymity because they did not have authorization to speak with the media.
In August, police said they thwarted a plot to blow up flights traveling between Britain and the United States. The plot touched off stricter security measures at all British airports, prompting travel chaos at Heathrow for weeks.
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Analysts said the main immediate impact for airlines would come from the cost of canceled flights.
Heathrow was closed to most flights from Europe, and British Airways canceled all its flights Thursday between the airport and points in Britain, Europe and Libya.
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