A day of remembrance has taken place across Wales to honour the anniversary of those who died in the terrorist attacks on the US.

From Wrexham in the north to Carmarthenshire in the south west, businesses held a one-minute's silence at 1346BST, the exact time the attacks on the twin towers began on 11 September, 2001.

Catherine Wolfe, with husband Charles, before September 11

One year on, Ground Zero was the focus of a world in mourning for the thousands who perished, including three from Wales.

They were Stephen Morris, 31, from Nantglyn, near Denbigh, Nicholas John, 42, originally from Dunvant in Swansea, and Catherine Wolfe (nee James), 37, also from Swansea.

All three were in the twin towers of the World Trade Center in Manhattan when they were attacked.

In Cardiff, a remembrance service was held at the city centre's St John's Church just a stone's throw from a candlelight vigil at the New York Deli in the Welsh capital's High Street Arcade.

American classic car enthusiasts also drove through the streets to raise money for the families of those killed in the terrorist attacks.

In London, the Welsh Assembly was represented at a service of remembrance at St Paul's Cathedral by Deputy First Minister Mike German.

Dr Williams offered his thoughts on the tragedy

He said: "People throughout Wales were stunned and appalled by the tragic events in New York a year ago - the passage of time has done little to diminish those feelings.

"The service, as well as being the major service for UK families to remember the loved ones who died, will also be an opportunity for friends, colleagues and others affected by the tragedy to offer their prayers.

"I take the thoughts of the people of Wales with me."

Welsh Secretary of State Paul Murphy also attended the service.

Earlier in the day, Welsh voices were raised in song at a remembrance ceremony taking place at the US Embassy in London.

Horror of human tragedy

Members of the South Wales Male Choir performed alongside the US Air Force Band at the Wednesday morning service in London.

During the ceremony, the remains of a Union flag found at Ground Zero in New York were presented to Home Secretary David Blunkett in memory of the British victims of the attacks.

Earlier still, the The Archbishop of Wales, Rowan Williams, who was now the Archbishop of Canterbury Elect, delivered Thought for the Day on BBC Radio Four's Today programme.

Dr Williams was on New York's Wall Street during the terror attacks and his sermon highlighted the horror - and hope - of the human tragedy for those that experienced it first hand.

He told listeners: "The image from outside is the single, dramatic moment - the crash out of a clear sky.

Raising cash for children

"But what we're going to remember from inside is the chaos, dark and dust - and the unexpected conversations and intimate touches of the hand from strangers as we waited."

Meanwhile in New York, three special constables from Pontypridd were joining the remembrance parade at Ground Zero and meeting the mayor of the city.

Steve David, 25, Howard Jeffrey, 42 and David Boyce, 33, represented South Wales Police as part of a British police contingent on the parade.

A soldier from Wales was also in the city to launch a charity run which will see him traverse the USA for two years raising money for children, including those who lost relatives on 11 September.

Mark Llewhellin, 28, is running the 19,000-mile Race of Hope from next spring, the longest run ever undertaken in the US and Canada.

The race will be announced in New York on Wednesday, after which he will run to the official starting point in the state of Maine.