New Delhi, Oct. 5 -- A British Airways flight from London to Chicago declared an emergency on Monday after plunging around 28,000 feet, according to online flight-tracking website FlightRadar24. The aircraft, BA295, was 'squawking 7700' - a code used by pilots to declare a general emergency.

The aircraft, which had departed Heathrow's Terminal 5 at around 11.50 am (local time), declared an emergency while flying over Ireland. It was scheduled to land in Chicago, according to an India Today report.

According to UK media reports citing flight-tracking data, British Airways flight BA295 was later seen turning back towards London Heathrow, indicating that the flight to Chicago had been abandoned.

A squawk is a four-digit code transmitted b...