July 7 bombings remembered
The second anniversary of the July 7 London suicide bombings will be commemorated at a series of low-key ceremonies today.
Hundreds of survivors and relatives are expected to gather at Kings Cross station, where the first bomb detonated two years ago.
London Mayor Ken Livingstone, Tessa Jowell, Transport Commissioner Peter Hendy and Tim O'Toole of London Underground will lay flowers at Kings Cross.
At 3pm 52 white balloons will be released outside Westminster Abbey to represent the number of victims that lost their lives as a result of the four bombs.
Families that were affected by the terror attack requested that there be no large public event and a national silence will not be observed.
Security services are on heightened alert as a number of high-profile events take place across the capital including the first stage of the Tour de France.
Tight security will also be surrounding the women's tennis final at Wimbledon and the Live Earth concert at Wembley Stadium which will feature Madonna and the Red Hot Chili Peppers among other stars.
Prime Minister Gordon Brown has warned that people face a summer of intensified security checks in the wake of the terrorist car bomb attacks in London and Glasgow.
The UK national threat level remains 'severe', which on Thursday was reduced from 'critical' - meaning an attack is thought to be imminent.
Work is under way to plan and erect a permanent memorial to the victims in Hyde Park's Lovers' Walk.
More than 700 people were also injured when three bombs exploded within seconds of each other on three London Underground trains.
The explosions took place at Russell Square, Aldgate and Edgware Road. A fourth bomb exploded on a bus nearly an hour later in Tavistock Square.