She told me I was the only survivor of the plane crash, that I was lucky to have escaped, but that one day, perhaps in 10 years, I would feel guilty to have lived. I didn't understand her.

It is the first fatal crash of a commercial airliner in the us since 27 August 2006, when 49 people were killed when a Comair jetliner crashed after take-off in Lexington, Kentucky.

Pakistan is observing a day of national mourning following the country's worst-ever air disaster.