Both pilots survived the crash of their AMX trainer aircraft, which experienced engine trouble near Czempin in western Poland, Polish Air Force spokesman Wieslaw Grzegorzewski told The Associated Press.
Speaking later from the field where the aircraft's twisted wreckage lay, Polish Gen. Wlodzimierz Usarek told TVN24 television that one of the pilots said a bird flew into an engine, causing it to fail.
Usarek said a commission was looking into the accident.
"As soon as we can see the concentration of American aircraft on airfields in Europe, we will simply destroy those airfields by launching our medium-range ballistic missiles at those targets"
The Russian Federal Space Agency, Roscosmos, found out the origin of the hole in the household compartment of the Soyuz MS-09 spacecraft