SARAJEVO, Bosnia -- Bosnia is marking the 20th anniversary of Princess Diana's visit, her last overseas tour before she died in a car crash in Paris.

Her crusade against land mines led to her three-day visit to Bosnia from Aug. 9, 1997, during which she met victims who sustained their injuries during the country's savage civil war in the 1990s.

Three weeks after her visit, which coincided with news of her romance with millionaire Dodi al Fayed, the pair died in a car crash in Paris when their driver lost control of his car as they were pursued by photographers.

British Ambassador to Bosnia Edward Ferguson said Thursday during a memorial conference in Sarajevo that Diana would be saddened by the fact that mines still kill people in Bosnia.

"What I think 20 years ago Princess Diana did is that she shone a light on this problem with mines, and she really brought it into public attention in an enormous way, in a way, perhaps, that only she could have done," Ferguson said.

"By walking through a mine field in Angola, by visiting Bosnia-Hercegovina just a few days before she sadly died. She really got the public attention and therefore political attention as well."

He said undetected land mines still represent a danger in Bosnia despite some recent progress. A half-million people, or about 15 per cent of the population, live with this fear of mines, Ferguson added.

The princess' trip to Bosnia was organized by The Land Mines Survivors' Network, a group founded in 1995 by two American victims of land mines, Ken Rutherford and Jerry White.

As part of the visit, Diana made a surprise visit to the Suljkanovic family in their modest home in the small village of Dobrnja near Tuzla.

Several weeks earlier, the father of the family, Muhamed Suljkanovic, had lost both his feet after stepping on a land mine in the forest outside his house, a remnant of Bosnia's three-year war.

Diana took him some cake on Aug. 9, his birthday, his wife Suada remembered.

"Diana and her friend Ken (Rutherford), the American, they brought the birthday cake, and they sang happy birthday to him, and we were in shock. How did they know?"

However the Suljkanovic family's joy turned to shock and disbelief when, just a few weeks after Diana's visit, they heard on the radio that the princess had died.

"What? I said to myself. How? Where? I could not believe it. Immediately after that I named my newborn daughter Diana, after the princess. They say we have to somehow remember good people, and we remember her like that," said Muhamed Suljkanovic.

During her visit Princess Diana promised financial support for Muhamed for a new prosthesis. Just a couple of months after she died, the family say they received a donation from the royal family, the exact amount promised by Diana.

AP Writer Dusan Stojanovic from Belgrade, Serbia, contributed to this report.