
Swiss airspace was closed on Wednesday after a computer malfunction with the air traffic control system stopped flights at the country's main airports, officials said.
"Swiss airspace is closed to traffic for security reasons following the failure of the computer with Skyguide, the Swiss air traffic control service," Skyguide said in a statement.
They did not give any details about the computer problems, but apologized for the incident and its consequences to customers, partners and passengers at Geneva and Zurich airports, and added that they are working hard to find a solution.
Earlier, Geneva airport announced it was suspending all its flights until 11 a.m. due to a computer failure.
The Swiss news agency ATS-Keystone said that international flights to Switzerland were being redirected to Milan.