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Defence & Security6 Nov 2026 · about 7 min

UPDATE: Hoax bomb threats disrupt flights around Europe

The brief

Several passenger planes received bomb warnings while flying to or from European cities. All the aircraft landed safely, and extensive searches found no explosives. The warnings affected flights connected with Warsaw, Rome, Sofia and Murcia, among other routes. A separate warning also concerned a flight at Manchester Airport. Ryanair was targeted most often. A flight from Manchester landed at Murcia in Spain after an emergency protocol was activated. Flights from Lisbon and Dublin reached Rome, while another Dublin flight reached Sofia. SAS and LOT flights heading to Warsaw also landed safely, although one was diverted to Warsaw Modlin. A Wizz Air flight was inspected in Sofia. The Crown Iris cruise ship was evacuated at Syros, Greece, after a bomb threat. It carried about 1,500 passengers and crew and was bound for Haifa. No device was found, and the ship was expected to continue its journey. These incidents show how warnings can trigger major safety responses even when they prove unfounded.

01

What happened to the flights and ship that received bomb warnings, and where did the incidents occur?

Several passenger planes received bomb warnings while flying to or from European cities. All the aircraft landed safely, and extensive searches found no explosives. The warnings affected flights connected with Warsaw, Rome, Sofia and Murcia, among other routes. A separate warning also concerned a flight at Manchester Airport.

Ryanair was targeted most often. A flight from Manchester landed at Murcia in Spain after an emergency protocol was activated. Flights from Lisbon and Dublin reached Rome, while another Dublin flight reached Sofia. SAS and LOT flights heading to Warsaw also landed safely, although one was diverted to Warsaw Modlin. A Wizz Air flight was inspected in Sofia.

The Crown Iris cruise ship was evacuated at Syros, Greece, after a bomb threat. It carried about 1,500 passengers and crew and was bound for Haifa. No device was found, and the ship was expected to continue its journey. These incidents show how warnings can trigger major safety responses even when they prove unfounded.

02

What is a hoax bomb threat, and how is it different from finding an actual explosive device?

A hoax bomb threat is a warning that claims, falsely or without evidence, that an explosive device is on a plane, ship or at an airport. It differs from finding an actual device because the warning is only information about a possible danger. A confirmed device is physical evidence that must be handled as an explosive threat.

In this case, authorities received multiple warnings, but searches found nothing. Police checked aircraft and airports. Passengers, luggage and planes were inspected in Rome, while Warsaw airports carried out security checks after flights landed. The Crown Iris cruise ship was also evacuated, yet no explosive device was found.

The absence of a device does not make the response unnecessary. Authorities cannot safely assume a warning is false before checking. These incidents therefore appear to have been hoax or unsubstantiated threats, but the article does not identify who made them or establish their motive.

03

How widespread were the alerts—how many Ryanair flights were targeted, and which other airlines and types of transport were involved?

The alerts were widespread rather than limited to one airline or airport. Ryanair appeared to be the worst hit, with four flights to different destinations targeted. The routes mentioned were Manchester to Murcia, Lisbon to Rome, Dublin to Rome and Dublin to Sofia. The report also mentioned a further warning about a flight at Manchester Airport.

Other airlines were involved too. SAS reported a threat against flight SK751 from Copenhagen to Warsaw. A LOT flight from Heathrow to Warsaw was diverted to Warsaw Modlin after an alert. A Wizz Air flight from Bergamo to Sofia was inspected after landing. The previous day, another Wizz Air flight from Luton to Sofia had been diverted to Budapest.

The incidents also crossed transport types. The Crown Iris, a Panama-flagged cruise ship carrying around 1,500 passengers and crew, was evacuated at Syros after a bomb threat. No explosives were found on the aircraft or ship described in the report.

04

What happens at an airport when a plane receives a bomb warning, even if the flight ultimately lands safely?

When a plane receives a bomb warning, airport and security authorities activate emergency procedures. The aircraft may be directed to a specific location, inspected after landing, or diverted to another airport. Runways or terminals can also be restricted while officials assess the threat. These steps protect passengers and staff while the warning remains unresolved.

The article gives several examples. Warsaw Chopin airport closed one runway while the SAS aircraft underwent a security inspection. The LOT flight was diverted to Warsaw Modlin, which was then closed after its alert. At Rome-Fiumicino, anti-bomb procedures checked passengers, luggage and the aircraft. At Murcia, an emergency protocol was activated when a Ryanair flight arrived from Manchester.

The response continues until authorities clear the risk. Rome officials said all checks were negative and lifted the alert. No explosives were found at the Polish airports or on the aircraft. The actions can disrupt travel, but the report shows that safe landing is only one stage of the process.

05

Why were fighter jets scrambled to escort some passenger planes, and what role did NATO's air-defence alert system play?

Fighter jets are scrambled when authorities need an immediate military response to a possible danger involving a civilian aircraft. Their role can include escorting the plane and helping ensure a controlled, safe landing while officials investigate. The article does not say that the jets found or confirmed a bomb.

Italian air force jets escorted Ryanair flight FR9611 from Dublin as it landed at Rome-Fiumicino. Earlier, Hungarian Gripen jets responded to a Wizz Air flight from Luton to Sofia after it was diverted to Budapest. Hungarian Defence Minister Romulusz Ruszin-Szendi said the jets took off within minutes and ensured the aircraft landed safely.

NATO's air-defence alert service was part of the notification chain in the Hungarian case. It issued an alert on Monday about the Wizz Air flight, according to the defence minister. The events show coordination between civilian aviation, national air forces and NATO's alert service when a threat requires rapid action.

06

What roles do airlines, airport operators, police, air forces, coast guards and NATO play when a transport security threat is reported?

Each organisation had a different job after a transport security warning. Airlines confirmed threats, communicated with authorities and managed affected flights. Airport operators activated emergency protocols, controlled runways and arranged inspections. Police handled security checks and reported whether concerns remained. These roles matter because aircraft, passengers and airport operations must be managed together.

The article shows this division clearly. Ryanair, SAS and LOT identified affected flights or provided information. Aena activated an emergency protocol at Murcia. Rome Airport reported anti-bomb procedures, while police in Rome and Warsaw-related authorities checked aircraft, passengers and luggage. LOT's aircraft was diverted to Modlin, and airports restricted operations during inspections.

Air forces added protection by scrambling jets for selected flights. The Greek coast guard handled the evacuation of the Crown Iris at Syros. NATO's air-defence alert service issued the warning linked to the Wizz Air flight from Luton. Together, these bodies moved aircraft or passengers, searched for devices and restored operations when checks were negative.

07

Why must authorities investigate every bomb warning as a real danger, and how do airport security procedures protect passengers when no device is found?

A bomb warning cannot be dismissed simply because it may be a hoax. Officials initially do not know whether the warning is accurate, so they must protect people while testing the information. Treating every warning seriously reduces the chance that a real explosive device will be overlooked during a busy flight or voyage.

The article describes several protective measures. Airports activated emergency protocols, closed runways and diverted aircraft. Security teams inspected planes, passengers and luggage. Italian fighter jets escorted one Ryanair flight, while Hungarian Gripen jets supported the safe landing of a Wizz Air flight. The Crown Iris was evacuated so passengers and crew were away from the possible danger.

These procedures worked as a layered response in the reported cases. No explosives were found on the aircraft or ship. Rome lifted its alert after checks were negative, and the Crown Iris was due to resume its journey. The incidents still caused disruption, showing why safety checks must come before normal operations.

This brief was written by AI from the original reporting and checked by other models. Names, figures and quotes come from the source; read it for full context.

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