Nigeria, Oct. 7 -- A retired Nigerian Air Vice Marshal died early Monday aboard a British Airways flight from London to Abuja.

The aircraft made an emergency landing in Barcelona, Spain, after the passenger became unresponsive mid-flight.

The flight left Heathrow Airport in London at 11:00 p.m. on Sunday, October 5, and was expected to arrive at the Nnamdi Azikiwe International Airport, Abuja, at 5:00 a.m. on Monday, October 6.

About two hours after takeoff, the passenger's condition grew worse, prompting the flight crew to divert the aircraft to El Prat Airport, Barcelona, where it landed at 1:10 a.m. local time.

The deceased was described as an octogenarian and a retired Air Vice Marshal, who had been reportedly ill before the trip...