A wave of suspected bomb threats targeting seven passenger aircraft across Europe has triggered emergency security checks, flight diversions and temporary airport disruptions, although no explosives have been found.

The incidents on Tuesday involved flights operating in Italy, Poland, Spain and Bulgaria, including two aircraft that had departed from the United Kingdom.

In Italy, two Ryanair flights arriving at Rome's Fiumicino Airport from Dublin and Lisbon were searched following anonymous bomb threats. The Dublin flight was escorted by Italian Air Force fighter jets before landing.

Airport operator ADR said security teams inspected the aircraft, passengers, crew and luggage, but found no explosive devices. The alerts were subsequently lifted.

In Poland, a LOT Polish Airlines flight from London Heathrow to Warsaw was diverted to Warsaw-Modlin Airport following a bomb threat, while a Scandinavian Airlines flight from Copenhagen to Warsaw also underwent security checks. The alert briefly disrupted operations at Modlin Airport, but no explosives were discovered.

Meanwhile, Spanish authorities activated emergency security procedures after a Ryanair flight from Manchester landed in Murcia following another bomb warning. All 121 people on board, including 114 passengers and seven crew members, were checked as security personnel searched the aircraft.

In Bulgaria, authorities inspected a Wizz Air flight from Italy's Bergamo Airport and a Ryanair service from Dublin after both received bomb threats. Both aircraft landed safely, and searches found no explosives.

Although the seven incidents have so far been treated as separate threats, authorities across several European countries are sharing information to determine whether they were coordinated or intended to disrupt air travel.

There is currently no confirmed evidence linking the incidents or indicating that they were part of a terrorist operation. The threats have all been declared false alarms, according to reports from European authorities.

The incidents followed a separate bomb scare on Monday involving a Wizz Air flight travelling from London to Sofia. The aircraft was diverted to Budapest, where Hungarian Gripen fighter jets escorted it to a safe landing. Security checks found no explosives.

The UK government described the latest warnings as "malicious hoax threats", stressing that the country had robust aviation security procedures and that police and intelligence agencies worked closely with international partners to assess potential threats.

Despite the absence of explosives, the incidents have raised concerns about the vulnerability of European air travel to coordinated hoaxes and other attempts to disrupt aviation operations. (ILKHA)