<div id="readability-page-1"><div>The following are the top stories on the business pages of British newspapers. Reuters has not verified these stories and does not vouch for their accuracy. The Times- Britain's accounting regulator opened an investigation into EY after the Big Four firm admitted to not realising that one of its senior partners had been leading its audits of the oil and gas giant Shell for too long.- Advisers have been appointed to explore a sale or flotation of the Warburg Pincus-owned AA five years after the heavily indebted group was taken private and the backers of the RAC are considering a listing in London as early as next year.The Guardian - Nissan has started the production of its latest electric car in Sunderland, a crucial step in the UK automotive industry's transition away from petrol and diesel. - The UK has signed a new trade deal with South Korea designed to increase exports of cars, Scottish salmon and Guinness canned in Britain.The Telegraph - Britain's telecom and media regulator Ofcom said it has launched investigations into broadband provider BT Group and Three following outages that disrupted mobile services nationwide.- Morrisons has become the first UK supermarket to delay its net zero targets in a setback for Ed Miliband’s clean power ambitions.Sky News - U.S. President Donald Trump filed a defamation lawsuit against the BBC, alleging the corporation's Panorama documentary portrayed him in a &#34;false, defamatory, deceptive, disparaging, inflammatory, and malicious&#34; manner. - Russia is trying to &#34;bully, fearmonger and manipulate&#34; the UK and its allies with attacks under the threshold of all-out war, the head of Britain's MI6 Blaise Metreweli said.</div></div>

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British business news highlights include EY's investigation by the accounting regulator, potential sale or flotation of AA, Nissan's electric car production in Sunderland, a UK-South Korea trade deal, Ofcom's investigation into BT Group and Three, Morrisons delaying net zero targets, Trump's defamation lawsuit against BBC, and Russia's manipulative actions as stated by MI6's head.

British Business - December 16