NEW DELHI: A Delhi-bound Jet Airways flight from Bangkok with 121 passengers onboard landed in emergency conditions at IGI airport here on Thursday after its commander was taken ill mid-air, forcing the co-pilot to take the controls.

"The captain of Jet Airways flight 9W-063 Bangkok-Delhi fell sick during the latter part of the flight. The first officer took over as the commander and declared an Emergency as per company and regulatory requirements," an airline spokesperson said in a statement, adding the aircraft landed safely at Delhi airport.