Second wave of bomb threats hits flights across Europe

More than a dozen passenger flights across Europe received bomb threats on Thursday, the second wave this week, causing diversions, emergency landings and security checks. Bulgarian air force jets escorted three airliners to the ground, and an Aer Lingus flight from Dublin to Rome was diverted to France. No explosives were reported found, and no country has said who is responsible. Earlier this week, at least seven flights and a cruise ship received threats; no devices were found.