London will fall silent at noon tomorrow, in an act of remembrance, after last week's terrorist attacks.
The two minutes silence will also be marked in all countries of the EU, including Ireland, as well as in Norway and Switzerland.
The Mayor of London, Ken Livingstone, has urged people to take to the streets tomorrow to observe the two minutes of silence.
Shops, offices and factories across Britain will observe the pause, along with all public transport in the capital.
Meanwhile, Scotland Yard says anti-terror police carried out a raid on a house tonight in connection with the London bombings.
It says they used a search warrant to enter and search a residential property in Aylesbury, Buckinghamshire.
A Scotland Yard spokesperson said a detailed forensic examination would now be carried out.
No arrests have been made, and no explosive substances are believed to have been recovered.
Suspected bomber's family 'destroyed'
The family of one of the suspected London suicide bombers has said they cannot accept he was capable of becoming a mass murderer.
22-year-old Shehzad Tanweer was a university graduate who studied religion in Pakistan for two months earlier this year.
His father owns a fish and chip shop in Leeds where he had lived all his life.
Mr Tanweer's uncle, Bashir Ahmed, said his family are destroyed by the news.
Police investigating last week's bomb attacks believe the perpetrators may have been acting on the orders of al-Qaeda and that there may be another bomb team waiting to strike.
They have identified the fourth suspected suicide bomber as a British man of Pakistani descent, who lived in West Yorkshire.
He is thought to have been a friend of the other three. All four are now thought to have died in the attacks.
A fifth suspect is currently being sought in connection with the bombings.
EU agrees to speed up combat of terrorism
The European Union has agreed to speed up efforts to combat terrorism, including fighting the radicalisation of young European Muslims, following last Thursday's bomb attacks in London.
Britain, which holds the Presidency of the EU, has proposed a number of measures, including controversial plans to log phone, e-mail and Internet use, which the bloc should approve by the end of the year.
Anti-terrorist laws
The British government is to introduce new anti-terrorist legislation to combat incitement to hatred and terrorism.
The British Prime Minister, Tony Blair, told the House of Commons today his government would also look at new measures to exclude or deport from the UK those who incite terrorism.
Mr Blair also said the attacks were not an isolated political act, but stemmed from a perversion of the Islamic religion.
The British Home Secretary, Charles Clarke, has said the country must assume it would be targeted by more suicide bombings.
He said Britain must work on the basis that there were other people prepared to act in the same way.
Mr Clarke chaired the meeting of EU interior ministers in Brussels this afternoon.
Inquests into deaths
Inquests have also opened into the deaths of seven victims of the bombings. They include 22-year-old Irish citizen Ciaran Cassidy with an address at Finsbury Park in north London.
No details were given at the hearing of the locations at which the victims died.
The hearings have been adjourned pending the police investigation and further inquests will be opened and adjourned tomorrow.
Eleven of the 52 confirmed bombing victims have been identified. 50 others are in hospital, including 12 patients in intensive care units.
Muslim Council shocked
The Muslim Council of Britain has said it is shocked that young British Muslims are suspected of carrying out the bombings.
Meanwhile, specialist officers spent most of the night making safe a car containing a significant amount of explosives found yesterday at Luton Railway Station.
Explosives were also found in one of the houses in Leeds raided yesterday.
