LONDON (AP) _ Under dull gray skies, Queen Elizabeth II led wreath-laying at the Cenotaph near the Houses of Parliament in the centerpiece of traditional Remembrance Sunday services in memory of the nation's war dead.

In similar ceremonies across the nation, Britons stood in silence.

London's Heathrow Airport came to a standstill for two minutes' silence.

The departure of a British Airways Concorde, Flight BA001 to New York, was delayed 45 minutes and air traffic controllers rerouted aircraft due to fly over central London.

A two-minute hush fell over Whitehall, the center of government, when Big Ben, the clock at Parliament, struck 11.

The queen's husband, Prince Philip, and her second son, Prince Andrew, political leaders and the High Commissioners, or ambassadors, from former colonies also laid wreaths.

Then, while a band played ``There'll Always Be An England,'' hundreds of veterans, some in wheelchairs, joined a march past the queen. Most were veterans of World War II.

The queen's 98-year-old mother, the Queen Mother Elizabeth, watched the ceremony from a balcony overlooking Whitehall, the center of government. She was flanked by the queen's daughter, Princess Anne, and Anne's husband, Comdr. Timothy Laurence.

The queen's eldest son, Prince Charles, on a visit to Macedonia, laid a wreath of poppies at small cemetery for British war dead in the capital, Skopje.