Queen Elizabeth II and her husband Prince Philip have observed a minute of silence to honor the victims of the London high-rise fire.
The queen and Philip stood silently before the start of the annual Trooping the Color procession that marks the queen's official birthday.
She said earlier that the national mood is somber but that Britain is resolute in the face of adversity.
The queen's official birthday is marked in June when the weather is often nicer than in April, the actual month of her birth. She is 91.
At least 30 people have died in Wednesday's fire and dozens are missing.
British health authorities say they are still treating 19 patients, 10 of whom remain in critical condition after the London high-rise fire.
NHS England says the injured are being treated in four London hospitals. At least 30 people were killed in Wednesday's inferno at the Grenfell Tower, while dozens of others are missing.
The fire at the 24-story building has led to community anger and protests over the British government's response. The public is also demanding answers about how the blaze spread so quickly amid reports that the recently-renovated building's exterior paneling fueled the flames.
More than 3 million pounds ($3.8 million) has been raised for victims of the London high-rise fire that has killed at least 30 people and left dozens homeless.
Londoners and others have also donated huge amounts of food, water and clothing, and shelter, to survivors.
Three appeals on the JustGiving site have helped to raise the 3 million pounds, and London's Evening Standard newspaper has launched a separate appeal that has raised at least 1.5 million pounds ($1.9 million) by Saturday morning. The British government has announced a 5 million-pound ($6.3 million) emergency fund for the victims.
The inferno Wednesday morning at the 24-story Grenfell Tower has led to community anger and protests over the government's response.
London firefighters are continuing the grim search after a high-rise fire that killed at least 30 people as public anger about the blaze continues to grow.
Many are demanding answers for how the blaze spread so quickly. Britain's Press Association says around 70 people are missing.
Queen Elizabeth II marked her official birthday Saturday by saying Britain remains "resolute in the face of adversity" after the horrendous fire and recent extremist attacks in London and Manchester.
The 91-year-old monarch said it is "difficult to escape a very somber mood" on what is normally a day of celebration.
The government has promised a full public inquiry.
Scuffles broke out near the Kensington and Chelsea town hall offices Friday as demonstrators chanting "We want justice!" surged toward the doors.

Source: Arab News