The emergency services will be tested today during an exercise at Wylfa nuclear power station on Anglesey.
The test will check the response of all the emergency services in the event of an incident involving the transport of radioactive material.
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Wales Captain Sam Warburton says his team are raring to go as they kick off their Six Nations campaign in Dublin tomorrow.
Liberal Democrat leader Tim Farron has criticised Labour at the party's spring conference in Cardiff.
A Royal Gun Salute was held at Cardiff Castle earlier today to mark the 64th anniversary of the Queen's accession to the throne.