India, April 22 -- U.K. stocks are modestly higher on Tuesday, led by gains in retailers and consumer staples stocks, even as the mood remains cautious amid lingering concerns about global economic growth due to trade tensions following the U.S. government's highly protectionist trade policy.

The stand-off between U.S. President Donald Trump and Federal Reserve Chairman Jerome Powell is also contributing to the subdued mood in most of the markets across Europe.

The benchmark FTSE 100, which advanced to 8,317.42 earlier, is up 11.77 points or 0.11% at 8,287.43 about half an hour before noon.

Sainsbury (J) is gaining about 3.2%. The merchandise retail company has confirmed the launch of a share buyback program worth up to 200 million pound...