Police are appealing for information after two caravans were stolen from the Pontlottyn area.
The caravans were stolen from GBR at Capital Valley Eco Park, which is a locked caravan storage unit.
The caravans are described as a five berth Elddis Odyssey caravan, white in colour with a burgundy stripe which is valued at approximately £10,000 and a 06 model five berth Bailey Pageant Provence Caravan which is magnolia in colour.
A number of items were inside the first caravan including a television and personal items.
Another caravan had £8,000 worth of damage caused as the thieves unsuccessfully tried to break in.
The caravans were taken overnight between Monday July 26 and Tuesday July 27.
Anyone with information about the thefts should call Gwent Police on 01633 838111 or call Crimestoppers on 0800 555111.