Four passenger flights bound for Poland, Spain and Bulgaria were targeted by bomb threats on Tuesday, but all landed safely and no explosives were found, according to authorities and airline officials. The incidents prompted airport closures, diversions and emergency security procedures across several European countries.
The alerts came amid a series of aviation scares over three consecutive days, increasing pressure on airports and security services to assess threats quickly while keeping passengers safe. Investigations into the source and credibility of the warnings were continuing.
Four flights affected by bomb alerts
Two of the flights were travelling to Warsaw. SAS Scandinavian Airlines flight SK751 from Copenhagen landed at Warsaw Chopin Airport, where one runway was temporarily closed while the aircraft was searched. The airline said passengers disembarked normally after the threat was reported.
A LOT Polish Airlines Boeing 737 MAX travelling from London Heathrow was diverted from Chopin Airport to Warsaw Modlin. The airport was temporarily closed following the alert, while passengers were evacuated and the aircraft underwent security checks. Airport spokesman Adam Szablowski said no suspicious item was found and operations later resumed.
In Spain, airport operator Aena activated its emergency protocol after a bomb alert involving a Ryanair service from Manchester to Murcia. The aircraft landed without incident, and the Civil Guard inspected it before the emergency measures were lifted.
The fourth incident involved a Wizz Air flight from Bergamo in northern Italy to Sofia, Bulgaria. Bulgaria’s Interior Ministry said the aircraft was inspected after landing in the capital at 10:10 Central European Time.
What authorities confirmed
- All four aircraft landed safely.
- No explosives were reported on any of the planes.
- Passengers were evacuated or disembarked as security procedures required.
- At least one airport temporarily closed or restricted operations.
- Emergency protocols were later stood down after inspections.
Threats follow earlier aviation disruptions
The latest alerts followed a separate incident on Monday involving another Wizz Air flight travelling from London Luton to Sofia. The aircraft was diverted and made an emergency landing in Budapest after an alert was raised through NATO’s air-defence system.
Hungarian Defence Minister Romulusz Ruszin-Szendi said Gripen fighter jets were deployed within minutes to support the aircraft’s safe landing. The incident added to concerns about the effect that repeated threats can have on civilian aviation routes, airport operations and military readiness.
On Sunday, an Austrian Airlines flight travelling from Tel Aviv to Vienna was also diverted to Bulgaria after a bomb threat. A search of the aircraft found nothing, according to the report.
Why the incidents matter for European aviation
Bomb threats against aircraft are treated as serious security incidents even when they prove unfounded. Airports and airlines must follow established procedures that can include aircraft searches, passenger evacuation, runway restrictions, diversions and coordination with police or military authorities.
For travellers, the immediate consequences can include delays, missed connections and changes to arrival airports. The incidents also demonstrate how a threat affecting one flight can disrupt operations beyond the country where the aircraft was originally scheduled to land.
The flights in this series crossed several national borders, involving routes connected with Denmark, Poland, the United Kingdom, Spain, Italy, Bulgaria, Hungary, Israel and Austria. That cross-border dimension means airlines, airport operators, civil-security agencies and national authorities may all be involved in responding to a single alert.
What happens next
Authorities are expected to examine how the threats were communicated and whether they are connected. The available information does not establish who made the alerts or whether the separate incidents came from the same source.
Airlines and airports will continue to apply their security procedures based on individual assessments. Passengers travelling through affected airports should check directly with their airline for current departure, arrival and diversion information, as operational conditions can change quickly during an incident.
At this stage, the confirmed position is that all four flights involved on Tuesday reached safe landings and searches found no explosives. The main outstanding issue is the investigation into the threats themselves and whether further aviation alerts are likely.
Conclusion
The latest EU news from the aviation sector concerns a sequence of bomb threats that disrupted four European passenger flights without causing reported injuries or damage. Although no explosives were found, the events underline the importance of coordinated airport security, clear passenger communication and careful investigation as authorities work to determine whether the alerts were connected.

