U.S.-bound flight makes emergency landing due to smoke

A Delta Air Lines jet made an emergency landing at Porto airport in Portugal on Sunday after smoke was detected in the cabin, and four passengers were treated at the hospital, the civil protection service said.
The jet was on a flight from Barcelona to Boston with 296 passengers when it was diverted, according to media reports.
The civil protection service said 14 passengers needed help after the plane landed safely at the airport in northern Portugal. Eight passengers who were on the Airbus A330 were treated on the tarmac at the airport, a spokesperson for the civil protection authority told Reuters.
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