7/7 anniversary set to be painful for the bereaved

Yellow gerberas will be laid at the 7 July memorial in Hyde Park

There will be three main events throughout the day to mark the worst terrorist attack on British soil.

The suicide bombings revealed a shortage of equipment - the discarded jackets of the dead were used as stretchers - and led to some striking acts of heroism by those trained to respond to emergencies, and by ordinary citizens.

This anniversary, like all the anniversaries, is set to be a painful day for the bereaved.

One mother, whose son was killed, has spoken of how, initially, she felt that the colour had gone out of the world and life was "awfully long and awfully grey".

Those who have lost relatives and those who were injured have been invited to the service at St Paul's Cathedral and to the more informal memorial event in Hyde Park this afternoon.

In the park, at the end, they will lay yellow gerberas - the flower is said to symbolise innocence and purity.

7/7 anniversary marked with services