LONDON: British retail sales unexpectedly fell in January from the previous month, as rising food and fuel prices weighed on consumer spending, official data showed Friday. Sales by volume slid 0.3 percent in January after a revised 2.1-percent fall in December, the Office for National Statistics (ONS) said in a statement. Analysts’ consensus forecast had been for growth of 1.0 percent in January. Over the year, retail sales expanded by just 1.5 percent in January, experiencing the weakest growth since November 2013. “We have seen falls in month-on-month seasonally adjusted retail sales, both in conventional stores and online, and the evidence suggests that increased prices in fuel and food are significant factors in this slowdown,” said ONS senior statistician Kate Davies. IHS Global Insight economist Howard Archer added the data suggested that a Brexit-fuelled economic slowdown was starting to appear. “The economy’s persistent resilience since last June’s Brexit vote has been largely built on consumers keeping on spending,” he said.