Media playback is unsupported on your device Media caption Cities and towns across the UK fell silent to mark the anniversary of the World War One armistice

The final ceramic poppy has been laid at the Tower of London memorial art installation as ceremonies took place in the UK and abroad on Armistice Day.

Large crowds saw 13-year-old army cadet Harry Hayes place the last of 888,246 flowers, each representing a British military death in World War One.

Other remembrance events were held in military bases, churches and schools.

A two-minute silence honouring those killed in conflicts since the start of WW1 took place at 11:00 GMT.

In London, remembrance ceremonies took place at Westminster Abbey, the Cenotaph and Trafalgar Square. Among the commemorations elsewhere:

French President Francois Hollande laid a wreath at the Tomb of the Unknown Soldier, under the Arc de Triomphe in Paris

A memorial service was held in the Afghan capital Kabul for British servicemen killed there

In the Belgian town of Ypres there was a special sounding of the Last Post

The two-minute silence was observed across the UK, including at the Field of Remembrance in Edinburgh's Princes Street Gardens and the National Memorial Arboretum in Staffordshire

A plaque was unveiled at Glasgow's Central Station. It reads: "On these platforms, in two world wars, hundreds of thousands of servicemen and women said good-bye to their families, some for the last time."

Towns, cities and villages across Wales remembered the fallen.

Army cadet Harry Hayes planted the last poppy at the Tower of London's commemorative installation

Image copyright Getty Images Image caption Military cadet Harry Hayes had the honour of placing the last poppy at the Tower of London's installation

Image copyright AFP Image caption Thousands of people turned out at the Tower of London again to witness the spectacle

Image caption The Armistice Day service in Ypres, Belgium, took place at the Menin Gate memorial

Image copyright AFP Image caption Services were held in various countries, including Australia

Image copyright AFP Image caption Villages, towns and cities came to a standstill at 11:00 GMT, as did the England football team

Image copyright Getty Images Image caption The silence was observed at Lloyd's of London

Image copyright AFP Image caption French President Francois Hollande laid a wreath in Paris

The cadet, from Reading Blue Coat School in Berkshire, was watched by thousands as he placed the ceramic flowers in the moat of the Tower of the London.

His great-great-great uncle, Private Patrick Kelly of the 1st Battalion, Irish Guards, was killed just weeks before the end of the war on September 27 1918.

Cadet Hayes admitted he was nervous, but said "It is an amazing honour, seeing all these poppies and I managed to plant the last one."

At the scene

By Peter Hunt, BBC royal correspondent, at the Tower of London

Image copyright Reuters

In a capital city with an energetic - at times frenzied - pace, there is a quality that can be in short supply.

Silence.

The silence at the Tower of London - temporary home to the installation of ceramic poppies - wasn't just observed for two minutes, as elsewhere in the country.

For a chunk of time at this major tourist attraction, most people were lost in their thoughts. Those who did chat spoke only in hushed tones to those beside them.

Armistice Day marks a century of sacrifice from the First World War to Afghanistan.

For many the art installation at the Tower has been an opportunity to reconnect with their own family's past.

As they stood around the moat of the former fortress, palace and prison they spoke of the loss their relatives had experienced and of the need to remember.

All eyes were on the poppies. Their existence, girdling this ancient monument, induced a temporary state of near reverence.

Each poppy represents an individual who didn't grow old.

Read more from Peter on his correspondent page

This year marks the 100th anniversary of the start of World War One, 70 years since the D-Day landings and the end of Britain's conflict in Afghanistan.

Since last year's Armistice Day, another seven members of the British armed forces have died in service - including five who died in a helicopter crash in Afghanistan in April.

Stephen Clarke, head of remembrance for the British Legion, said: "This year it feels like there are more poppies out in the streets and a lot of different styles of poppy, because remembrance is very personal."

Richard Hughes of the Western Front Association, which organises the Annual Service of Remembrance at the Cenotaph, said this year's commemorations were not just about the end of World War One.

"We have got the modern version here with us stepping back from Afghanistan," he said. "That itself has tremendous resonance."

Image copyright Getty Images Image caption Brigadier Rob Thomson laid a wreath at an Armistice Day ceremony at Kandahar airfield, Afghanistan

Image copyright PA Image caption Balloons and confetti were released in Liverpool City Centre

Image copyright PA Image caption Staff at York Station observed a two minute silence

Image copyright PA Image caption Staff and shoppers at a shopping centre in Bristol stopped to pay their respects

Image copyright AFP Image caption The Royal British Legion's Silence in the Square event took place in Trafalgar Square

World War One Centenary

Image copyright Getty Images

One of the biggest events was at the Tower of London, where a commemorative art installation has been drawing thousands of visitors.

Each ceramic poppy in the artwork - Blood Swept Lands And Seas Of Red - represents a British or colonial death during World War One.

On Sunday, two-minute silences took place across the UK and the Commonwealth.

The Queen, political leaders and military veterans laid wreaths at the Cenotaph on Whitehall - the focal point of Remembrance Day services.

Armistice Day has been marked on 11 November every year since 1919 - a year after the Allied forces signed an agreement with the Germans that would end WW1 at 11:00 in the morning.

After the Second World War, commemorations were adapted to honour the fallen of both conflicts, and Remembrance Sunday was established to replace Armistice Day.

From 1995, the British Legion campaigned successfully to restore the two-minute silence to 11 November as well as Remembrance Sunday.

World War One Centenary

Image copyright Getty Images

What can today’s soldiers learn from WW1?