Two passenger jets made emergency landings in Budapest yesterday. From [1] CNN, :

BUDAPEST, Hungary -- Security threats forced two passenger jets operated by Lufthansa and Turkish Airlines to make emergency landings in Budapest Sunday.

The Lufthansa Airbus A-321 jet, which was en route from Istanbul to Frankfurt with 169 passengers, landed in Budapest after airline officials received a security threat, an airline spokesman said.

Later in the day, a Turkish Airlines Boeing 737 carrying 162 passengers, landed in Budapest after its pilot was told of a bomb threat by air traffic controllers in Istanbul, according to a Hungarian police spokesman.

Meanwhile, in Frankfurt, Germany's busiest airport, passengers on a Croatian Airlines Airbus A319 flight were evacuated after a bomb alert. They had just arrived on a flight from Zagreb.