Czech Air Force on alert because of terrorist threat

The Czech Air Force is on alert after the police received an anonymous threat of a terrorist attack in the second biggest Czech city, Brno. The police said they received an anonymous SMS message threatening with a terrorist attack on three high-rise buildings which are part of a business centre in Brno-Zabovresky and suggesting it might come from the air. The airspace over the city of Brno is now guarded by aircraft from the Caslav air base.