From 8am to 8pm tomorrow memorials are planned across the country in remembrance of those who died a year ago in the July 7 London suicide bombings that killed 52 innocent people.

Most of the ceremonies will be in London where the four bombs went off on three tube trains at 8.50am and a bus, at 9.47am, as people made their way to work.

Nationwide people will be invited to take part in a two-minute silence from noon. Announcements will be made on all Underground trains and platforms reminding people when it is about to start.

A year on from the bombings - the worst in London since the Second World War - tensions remain high as the police and politicians warn of the likelihood of another attempted terrorist attack.

Events will culminate in the evening with a ceremony at Regent's Park for the more than 1,000 family members and known survivors of the bombings. Tony Blair and John Reid, the Home Secretary, who is under intense pressure to order a public inquiry into the bombings, are expected to attend.

Apart from opening and closing remarks by culture secretary Tessa Jowellat the Regent's Park event, there will be no speeches. The memorial will include mostly music and poetry readings by those whose lives were changed a year ago.

The names of all 52 people killed by the suicide bombers will be read out by BBC newsreader Peter Donaldson.

The Regent’s Park event will end with Song of Doves, written on New Year's Day by David Jones, whose 28-year-old daughter Helen died in the King’s Cross explosion.

The London Gospel Choir will sing Bridge over Troubled Waters, Something Inside So Strong.

The park ceremony has been kept low-key. "It is for them to have a time of commemoration," a department of culture spokeswoman said.

The Duke of Kent will represent the Royal family at Regent's Park while the Queen, the Duke of Edinburgh, the Prince of Wales and the Duchess of Cornwall will observe a two-minute silence while at the Order of the Thistle service at St Giles Cathedral in Edinburgh.

Plaques commemorating the victims will be placed at each of the bomb sites at five locations - King's Cross, Russell Square, Edgware Road, Aldgate and Tavistock Square.

Identical plaques are being unveiled at Russell Square and at King’s Cross because survivors and the dead were recovered from both sites as the explosion occurred between the two stations.

Families of victimes and survivors will attend a private ceremony at the Museum of London to lay a book of tributes before a service at St Ethelburga’s Church in the City of London.

July 7 memorial events

8.30 - 10am: St Paul’s Cathedral, London, EC4, 8.30-10am

Special prayers every hour and a special area for quiet prayer and reflection throughout the day. First act of remembrance (8.50am) includes reflection by the Bishop of London and the lighting of candles representing Aldgate, Edgeware Road and Russell Square.

Second act of remembrance (9.47am) includes reflection by the Dean and the lighting of candles representing Tavistock Square. A bell is tolled for those who lost their lives.

5pm: Evensong is dedicated to those killed and injured by the bombings, the bereaved, the emergency services and all who responded.

8.30am and 5.30pm St George the Martyr, Queen Square, London, WC1, close to the Tavistock Square bomb.

8.50am King's Cross Station, London, N1. Tessa Jowell, Mayor of London Ken Livingstone and Transport Commissioner Peter Hendy lay flowers at Kings Cross.

9.47am Tavistock Square, London WC1. Mayor of London Ken Livingstone and Transport Commissioner Peter Hendy lay flowers in Tavistock Square.

11.30am - 12pm. Kings Cross, Russell Square, Edgware Road, Aldgate, Tavistock Square.

Memorial plaques in five bombing locations are unveiled at private event for families and friends of the victims.

11.45am - 1.30pm Multi-faith service at St Pancras Church, Euston Road, London, NW1, close to the bus bombing. Service brings together major religions in remembrance of those killed.

From noon: two-minute silence

12pm - 1pm St. Botolph Church, Aldgate, London, EC3. The church is close to the Aldgate bombings.

2pm - 3pm Kings Cross, Russell Square, Edgware Road, Aldgate, Tavistock Square. London bombing survivors’ private visit to memorial plaques in five bombing locations.

3pm Museum Of London, London Wall, London, EC2. Book of tributes ceremony. A Private event for families and friends of London bombing victims.

4.30pm Cross Flatts Park, Beeston, Leeds. Mohammed Iqbal, the first Asian Lord Mayor of Leeds, and local MP Hillary Benn attend symbolic tree planting ceremony organised by Cross Flatts Park residents. Three of the London bombers had links with the area. Local faith leaders also present.

6pm - 8pm Queen Mary’s Garden, Regent’s Park Inner Circle..

Tessa Jowell opens and closes this event bringing together bereaved families and Londoners in remembrance of those killed in last year's London bombings.

Centrepiece is a reading aloud of the names of the 52 victims of the atrocity, framed by music, readings by family members, and songs performed by the London Community Gospel Choir

During the course of the day, members of the public are invited to place individual flowers to help create a giant 'flower mosaic'.

Families and survivors complete the mosaic at the end of the service, as a symbol of remembrance and renewal.

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