Yum Brands, the owner of fast food chains KFC and Pizza Hut, says that fresh concerns of bird flu in China have not impacted on its sales.

Stock markets in Europe open lower, following sharp falls in Asia and on Wall Street amid worries of a US slowdown and weaker growth in emerging economies.

The Civil Aviation Authority tells the BBC that the huge growth in people carrying lithium batteries on aircraft poses a growing fire risk.

Oil giant BP reports a fall in profits for 2013 as a result of asset sales and weaker margins on refining.

Toyota forecasts record annual operating profits as the weaker yen helps to boost overseas sales for the export-oriented car manufacturer.

Shares in China's Lenovo, the world's biggest PC maker, fall by as much as 15% as investors question the company's recent acquisition strategies.

Ocado reports widening losses, but the online grocer - which is yet to report an annual profit - says it has made "significant progress".

Shares in chip designer Arm Holdings fall after a slowdown in smartphone sales hits royalty revenues.