It's not known from which airport. Afghanistan has never seen so much violence than in the last three years.
Plus there has been an outbreak of a Cholera epidemic in Kabul in june.
AP 14th june 2005
Risk of a Colera epidemic in Kabul. KABUL, Afghanistan (AP) More than 2,000 cases of Cholera have been detected and at least eight people have died, warned an American sanitary expert. The health minister confirmed on Monday 300 cases of Cholera, but no deaths.
http://www.edicom.ch/news/international/050614090639.tu.shtml