A Delta Air Lines flight travelling from Barcelona to Boston Logan International Airport made an emergency landing in Porto, Portugal, on Sunday after smoke filled the cabin, the airline confirmed.
Flight DL251 was diverted to Porto Airport after the incident, with several people requiring medical attention.
A spokesperson for Portugal’s emergency and civil protection authority told Reuters that three people were hospitalised for treatment following the incident.
Flight diverted to Porto
According to data from flight-tracking service Flightradar24, the aircraft departed Barcelona at 3:15pm local time and was diverted to Porto, where it landed at around 5:45pm.
The cause of the smoke inside the cabin was not immediately clear.
The incident prompted an emergency response after the aircraft landed in Porto. Several passengers were reportedly taken for medical assessment following the diversion.
Delta confirmed that the flight had been diverted but further details about the circumstances surrounding the smoke were not immediately available.
Flight attendants also examined
Seven Delta flight attendants were reportedly examined after the aircraft landed.
The crew members were said to have experienced symptoms including nausea and headaches following the incident.
Authorities and emergency personnel responded to the aircraft after it arrived at Porto Airport, while those requiring further treatment were taken to hospital.
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The airline has not indicated whether the smoke was caused by a mechanical issue, fumes or another problem aboard the aircraft.
An investigation is expected to determine the source of the smoke and whether any technical fault contributed to the emergency diversion.
Similar incident reported on Alaska Airlines flight
The Delta incident comes days after a separate case involving an Alaska Airlines flight bound for Hawaii.
Passengers aboard Alaska Airlines Flight 803 reportedly became ill after an unidentified odour was detected inside the aircraft on September 24.
The two incidents involved different airlines and aircraft, and there was no immediate indication that they were connected.
