Yum! Brands, the owner of Pizza Hut and KFC, saw sales growth in the UK slow in the first three months of the year. In its first quarter trading update the American-based restaurant giant, said system sales in the period grew by 2% year-on-year compared with an increase of 8% in the fourth quarter. Total revenue for the first quarter in its international division, which includes all markets other than the US and China, increased 12% to $704m (£457m). Operating profit was up 13% to $141m (£91m).