U.K. holds minute of silence in 10th anniversary of 7/7 attacks

LONDON, July 7 (UPI) -- A minute of silence was observed throughout the United Kingdom Tuesday in remembrance of the 52 people killed by suicide bombers in the 7/7 London attacks.

On July 7, 2005, four suicide bombers detonated separately on three Tube underground subway stations and a double-decker bus, killing 52 people and injuring more than 700. The attacks are known simply as 7/7.

Several Tube stations held a minute's silence at 8:50 a.m. local time, when the bombings first began a decade ago.

Al-Qaida in Pakistan and Afghanistan accomplices Mohammad Sidique Khan, 30, Shehzad Tanweer, 22, Hasib Hussain, 18, and Germaine Lindsay, 19, carried out the attack -- considered the "worst single terrorist atrocity on British soil."

Bishop of London Richard Chartres delivered an address at St Paul's Cathedral.

"Soon after 7/7 the families and friends of the victims compiled a book of tributes. It is a taste of the ocean of pain surrounding the loss of each one of the victims," Chartres said. "The tribute book is also very revealing about the character of the London which the bombers attacked. The majority of the victims were young. They came from all over the U.K. and all over the world."

Wreaths were laid by survivors and several officials, including Prime Minister David Cameron and London Mayor Boris Johnson, at the July 7 Memorial in Hyde Park. Flowers will be laid at the site of the attacks.

"Ten years on from the 7/7 London attacks, the threat continues to be as real as it is deadly -- but we will never be cowed by terrorism," Cameron said in a statement.