Each one of the 52 victims of the July 7 bombings has been commemorated in a memorial unveiled on the fourth anniversary of the terrorist attacks.

The £1 million Hyde Park monument, unveiled by the Prince of Wales and Tessa Jowell, consists of 52 stainless steel columns, or stelae, which stand 3.5m tall.

Each one is unique and they have been grouped together in four clusters reflecting the separate locations of the bombings - Tavistock Square, Edgware Road, King's Cross and Aldgate.

A stainless steel plaque naming all those who died has also been erected at the memorial site between the park's Lover's Walk and Park Lane.

The families of those killed in the bombings met Prince Charles, the Duchess of Cornwall, Ms Jowell and London mayor Boris Johnson before the memorial service began.

As the families waited for Charles and the Duchess of Cornwall to arrive, many spent time walking around the 52 stainless steel columns, running their hands over the surfaces of the metal structures and also reading the names inscribed on a plaque nearby.

Ms Mozakka's mother, Behnaz Mozakka, 47, a biomedical officer, was killed on the Piccadilly line Tube while commuting to work.

She added: "One of the fantastic things about the monument is that it reflects the individual and the collective and shows the connectivity of events."

She added: "I think and hope people will feel passionately about the memorial when we open it."

Charles and Ms Jowell addressed the gathered audience before Sir Trevor McDonald, who hosted the ceremony, read the names of the 52 victims and a minute's silence was observed.

Mr Johnson said: "This memorial echoes the steely determination shown by Londoners in the days following the bombings.

"We have done much to make London safer, but today reminds us that London's strength ultimately lies with its people."

© Independent Television News Limited 2009. All rights reserved.