Originally Posted by
atakacs
any idea of the nature of the emergency?
Don't know.
Looking at the data linked here it appears that on some days AF218 overflies Iran, on others it goes over Iraq:
https://www.flightradar24.com/data/flights/af218
There are probably a lot of Desi's with U.S. passports on that flight since it is a popular Delta codeshare.
KWI is a few minutes further from the divert point, it would seem that something urgent caused them to go to IFN.