Five retailers along with tobacco firm Gallaher have agreed to pay a multi-million pound fine after admitting colluding on the price of tobacco products.
The fine of £173.3m, to be paid to the Office of Fair Trading, is one of the biggest settlements of its kind.
Asda, Somerfield, One Stop Stores, TM Retail and First Quench admitted to fixing the price of cigarettes between 2000 and 2003. Gallaher is to pay the largest share of the fine at £93m.
In April this year the OFT concluded that 11 retailers and two tobacco manufacturers had broken competition law by swapping information on the price of cigarettes.
Its investigation against the Co-operative Group, Imperial Tobacco, Morrisons, Safeway, Shell and Tesco is continuing. All are fighting the allegations.