(CNN) -- A suspicious piece of luggage that was about to be loaded onto a flight in Namibia was a "test device" from a U.S. company that tests alarm and security systems, Germany's Interior Minister Thomas de Maiziere said in a news conference Friday in Hamburg, Germany.
The discovery of the bag at Windhoek Hosea Kutako International Airport in Namibia delayed flight 7377 to Munich, Germany on Wednesday and raised security concerns, a spokeswoman for the airline, Air Berlin, said Thursday.
De Maiziere said he believed the device was from a U.S.-based company, but did not know which company. He said no one was warned in advance about the test device. The bag contained a functioning electronic clock with wiring attached, but no explosives.
"Air Berlin has confirmed that there was no explosive material in the laptop bag found in Namibia," Sabina Teller, spokeswoman for Air Berlin, told CNN. "The luggage was found in the airport, at no point was on the plane. It had no luggage label so it was impossible to know where it was going, which company it was supposed to fly with or who it belonged to," Teller said.
CNN
