Laura Webb's family had been searching for her since the bombs

Laura Webb, who was 29 and from Kingston-on-Thames, died in the explosion at Edgware Road.

Her brother, Cardiff Council officer Rob Webb, and other family members had spent the week trying to trace her.

Fifty-one victims are now known to have died in the four blasts. Three of the bombers are also known to have died.

In a statement, the family said: "Laura was a wonderful young person and an example of how to live life.

"She was kind, loving and beautiful and all of us are better people for having had her in our lives.

Although she leaves a great gap in our lives, she leaves us richer in spirit Family statement

"It is hard to believe that she is gone and her loss is even more tragic because of the appalling incident that led not only to her death, but the deaths of over fifty other people."

The statement continued: "Laura's life was an inspiration to us all.

"Although she leaves a great gap in our lives, she leaves us richer in spirit and privileged to have had her as part of our lives."

Mr Webb told BBC Wales that the family were informed on Thursday night that his sister had died in the attacks.

She was last seen leaving her home on the morning of 7 July but never arrived at her office in Paddington.

Her boyfriend Chris Driver, 28, and two brothers had searched London hospitals, desperately hoping to find her.

She leaves her parents, her partner Chris, her brothers Robert and David, sister-in-law and two nephews.

Mr Webb's employers, Cardiff Council, expressed their condolences to the Webb family.

In a joint statement, council leader Cllr Rodney Berman and chief executive Byron Davies said: "Our sincerest thoughts are with Rob and his family at this tragic time and we have sent them our deepest sympathy.