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Korean Air jet escorted by German Air Force jets after losing radio contact Reuters

German authorities say a South Korean airliner headed for Switzerland was escorted to Stuttgart Airport by two Air Force jets after losing radio contact.

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Officials determined that there was a problem with the aircraft's radio equipment after the Korean Air operated Boeing 777 landed safely on Saturday (15 July) evening.

German police said Sunday that they received some 250 calls from residents because of sonic booms caused by the two fighter jets.

The German news agency DPA reported that Stuttgart Airport said the 211 passengers on the Korean Air flight - from Seoul to Zurich - had to spend the night on cots in a terminal because it wasn't possible to organise transport at the late hour and there weren't enough hotel beds available.

The passengers were taken to Switzerland by bus early on Sunday.