Relatives of the 67 Britons killed in the Sept. 11 attacks five years ago tearfully remembered their dead Monday at a memorial garden near the U.S. Embassy.

"It doesn't get any easier, but our minds are much calmer, and we can think through all the events without being flooded by tears and sadness." said Adrian Bennett, 55, whose 29-year-old son Oliver was among the victims.

Bharat Parmar, 44, whose cousin Hashmukh Parmar died at the World Trade Center, said the terrorist strike that killed 52 bus and subway passengers in London last year had increased his outrage.

"My personal feeling is that I have been more angry inside," he told a reporter.

Get complete coverage of the fifth anniversary of 9/11 in FOXNews.com's special Sept. 11 Center.

"The first couple of years we were just sad, but now we feel angry with 7/7 last year ... it just reignited the anger."

Bouquets of white roses and yellow carnations were piled beneath the oak pergola where the names of the victims are inscribed on three bronze plaques.

Notes laid at the memorial were solemn reminders of what was lost the day when terrorist attacks on the United States killed nearly 3,000 people, including 500 people from 91 countries.

"You are not forgotten."

"I just want you back."

"Loved and missed by all your friends forever."

"Still in my heart."

Watch streaming video of FOX News' broadcast from Sept. 11, 2001, on FOXNews.com.

Buried beneath the garden is a section of a steel girder from the wreckage of the World Trade Center. Above it, ivy climbs the canopy's pillars toward an inscription that reads, "Grief is the price we pay for love."

A note attached to a potted white rose bush reads, "To my dear friend, Michele. I can't believe its been five years. You've missed so much and you've been missed so much. Love, Sue."

In a brief speech to about 300 people at the ceremony, U.S. Ambassador Robert Tuttle said he found it hard to believe that five years had passed since the attack.

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"Looking beyond this place to the world today, the sadness that began Sept. 11 has expanded to thousands of innocent victims of terrorism and war," Tuttle said.

Alex Clarke, whose 30-year-old daughter Suria Clarke, died in the attack, extended her thoughts to victims of terrorism around the world.

"We know their grief, we feel their pain, we send them our love and we wish them peace," Clarke said.

Thousands of British workers were expected to join in a moment of silence and to raise money for charities. Cantor Fitzgerald, the investment banking firm that lost 658 staff members at its offices above the 100th floor of the north tower, and the Boston Consulting Group, which split from Cantor, were donating global revenues from Monday's trading to charities, including a fund that assists victims' families.

About 120 police officers from across Britain traveled to New York to mark the anniversary along with Prince Andrew, whose flight to the United States was diverted the day of the attacks.

Complete coverage of the anniversary of 9/11 is available in FOXNews.com's special Sept. 11 Center.