Forestry workers have begun to fell hundreds of acres of trees in the largest ancient woodland in Wales because they have been infected by a fungal disease.
It is spreading through thousands of larch trees that are growing in the historic Wentwood Forest between Newport and Chepstow.
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Stars of Team GB at this years' Olympics were in Wales today, as part of ITV's I Am Team GB campaign.
As Wales gets involved in the country's biggest sports day - Our Olympians have been getting in on the action.
ITV switched off all of its channels for an hour on Saturday as part of a national sports day event.