PASSENGERS feared the worst as they were caught up in a cockpit emergency on a BA flight.

Pilots were forced to wear oxygen masks as fumes filled the area.

The livery of British Airways passenger planes are seen at Heathrow Airport in West London.Pilots were forced to wear oxygen masks as fumes filled the cockpit on a BA flightCredit: REUTERS

They declared an emergency on the to flight — and returned to London.

A source said: “It was terrifying.

“Passengers were scared and feared the worst but the pilots were heroes.

“They had to wear oxygen masks because they were not clear what the odour was.

“They ensured the fumes didn’t spread throughout the cabin.”

“As the plane came in to land the emergency services lined the runway.

“It was very dramatic.”

Footage showed emergency vehicles monitoring the and firefighters waiting to board.

said standard procedures were followed after what it called “a technical issue” on Saturday night.

The later resumed its flight to Aberdeen.