Britain's ambassador to European Union quits: source

London: Britain's ambassador to the European Union, Ivan Rogers, has resigned less than three months before the UK is due to trigger the process to leave the bloc, a source told AFP.

The BBC reported last month that Rogers had told UK ministers that EU countries believe a trade deal with Britain might take 10 years to achieve, a report rejected by Prime Minister Theresa May's spokesman.

Rogers had been in his post since November 2013, having been prime minister David Cameron's Europe adviser.