Irish customs officials are cracking down on home heating oil smugglers who are exploiting rising prices in the Republic to bring in cheaper products from Northern Ireland.
Officers have already seized 10,000 litres of Northern Irish kerosene. This compares with a total of 27,500 litres confiscated during 2010.
The increase in the illegal movement of kerosene from Northern Ireland is largely due to the introduction of carbon tax in the Republic, which added €32 (£28) to the cost of 1,000 litres.
The biggest profits from the scam are being made by those who organise tankers to deliver kerosene, sourced in Northern Ireland, to forecourts in the Republic and then sell the cheaper product at top prices.