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The Queen and the Duke of Edinburgh are due to begin the second of their two-day tour of Wales to mark her Diamond Jubilee.

They will travel to Aberfan, their fourth visit to the town since the landslide disaster that claimed 144 lives in October 1966.

Later, they will visit Ebbw Vale and Glanusk Park, near Crickhowell, Powys.

The tour has attracted hundreds of well-wishers, but two men were arrested in separate incidents in Merthyr.

The Queen and the duke will start the day by officially opening Ynysowen Community Primary School in Aberfan.

The visit is a sign of her continued support for the community since a coal waste tip slid down a mountain, engulfing a school and surrounding houses.

Among the victims were 116 children.

Later, they will meet former steel workers and museum volunteers at a newly-refurbished works general office and archives in Ebbw Vale.

The Queen and the duke will then attend a service at the town's Christ Church and meet community groups in a reception.

Finally, the visit will be crowned with a "Diamonds in the Park" festival in Glanusk Park, featuring rural activities and sports.

More than 100 young St John volunteers will meet the Queen on her visit.

On Thursday, the Queen started the first day of the tour in Cardiff with a <link> <caption>service of thanksgiving</caption> <altText>click through to story</altText> <url href="http://www.bbc.co.uk/news/uk-wales-17844904" platform="highweb"/> </link> at Llandaff Cathedral. More than 600 people attended.

The royal couple then travelled to Margam Park, where they <link> <caption>met Wales' Grand Slam-winning team</caption> <altText>click through to story</altText> <url href="http://www.bbc.co.uk/news/uk-wales-17858450" platform="highweb"/> </link> .

They <itemMeta>news/uk-wales-17859394</itemMeta> with a visit to Merthyr Tydfil's Cyfarthfa Castle and Cyfarthfa High School.