Bomb alerts disrupted at least 27 flights in Europe on November 5, forcing diversions and military escorts in a second wave of aviation threats within a week, Reuters reported.

A Dublin-to-Rome Airbus A320 was among the affected aircraft. Authorities treated the alerts as security incidents requiring checks even as reported threats proved false.

No perpetrator was identified in the report. The pattern alone does not establish responsibility by a particular state, organization or individual.

For passengers, the immediate effects were changed landings and delayed journeys. Security responses and fighter escorts should not be confused with confirmation that an explosive device was aboard an aircraft.