Elizabeth Nicholson whose sister Jenny died in the 7/7 bombings exactly 9 years ago, touches her name on the plaque. She condemned vandals who defaced the memorial overnight.
David Cameron has "unreservedly" condemned the attack on the 7/7 memorial. The Prime Minister has sent a floral tribute to be laid at it to mark the anniversary.
The monument honouring the 52 dead in the attack on London's transport system in 2005 cost nearly £1 million and has 52 stainless steel columns, 11.5ft tall.
It was unveiled in 2009 at a memorial attended by the Prince of Wales, the then Prime Minister Gordon Brown and other political leaders.
The columns are grouped together in four clusters, reflecting the separate locations of the bombings - Tavistock Square, Edgware Road, King's Cross and Aldgate.
– Royal Parks statement
We found it this morning. It has now been removed and the memorial can go ahead as planned. Obviously, we are very disappointed.
The memorial commemorating the victims of the July 7 bombings on London has been defaced just hours before survivors and bereaved families gather to commemorate the ninth anniversary of the attacks.
The stainless steel columns of the memorial in Hyde Park, central London, were daubed with red and black slogans overnight with the messages "4Innocent Muslims" "Blair Lied Thousands Died" and "J7 Truth".