Bomb threats affect flights across Europe again

Air travel across Europe has been disrupted after multiple passenger flights reported bomb threats - for the second time this week.

Fighter jets have escorted some planes, with some diverted to alternate airports or military bases.

There have been no reports of explosive found.

In the Czech Republic, police say bomb threats were received on four flights to Prague, with explosives tests "yielding negative results".

Other flights reporting threats include:

Aegean Thessaloniki to Milan, landed in Milan
Ryanair Porto to Milan, landed in Milan
Aer Lingus Dublin to Rome, diverted to Evreux airbase in France
Finnair Helsinki to Rome, landed in Rome
Wizz Air Milan to Bucharest, landed in Bucharest
Wizz Air Milan to Warsaw, diverted to Vienna
LOT Warsaw to Brussels, landed in Brussels
Ryanair Copenhagen to Sofia, landed in Sofia
Ryanair to Madrid to Sofia, landed in Sofia
Ryanair London to Sofia, diverted to Plovdiv

Wizz Air says its flight from Milan to Warsaw was diverted to Vienna "in accordance with established safety protocols", adding that other airlines were "also experiencing threats".

Aircraft communications (ACARS) from Aer Lingus' Dublin to Rome flight show a "clear account" of the diversion, according to aviation safety expert Marco Chan.