Police in South Africa today apologized after a plane hi-jack training exercise was reported around the world as being an actual incident.

The exercise, carried out at Wonderboom Airport, north of Pretoria, backfired and was given extensive coveage on local radio and by a number of international news agencies.

The incorrect report also appeared on the Airwise news pages.
http://news.airwise.com/stories/2001/02/983381458.html