An Australian man has tried to sell wreckage from one of the airliners that crashed into the World Trade Centre on eBay for $250,000.
The seller, who gave his home city as Adelaide, claims he obtained the piece of turbine blade from a relative who worked in a nearby building in New York.
But angry relatives of a Sydney man killed in the September 11, 2001 terror attack have described the attempt to profit from the tragedy as callous and cruel.
The debris is said to be from American Airlines Flight 11, the first to crash into the twin towers.
Qantas baggage handler Alberto Dominguez was one of 92 passengers aboard the plane when it was hijacked by al-Qaeda terrorists.
Mr Dominguez's son, Diego, told The Sunday Telegraph he found it hard to believe someone could try to sell a piece of the wreckage.
"Nobody should profit from that. It's cruel to try to sell something like that," Diego Dominguez said.
"It's hard to believe. If they really have it, they should hand it over to a museum or something. That would be the right thing to do."
The seller, whose eBay identity is james4894, put the item up for sale last week.
In his description, he said the wreckage had been found on the roof of a building about 1km from the World Trade Centre.
There was not a single bidder in the 24 hours before the item was withdrawn from sale after complaints by members of the public.
Rick Law, of the 9/11 Memorial Project, which tracks the whereabouts of 9/11 aircraft debris said: "This is the most offensive and disturbing item we have seen put up for auction."