Britain said on Thursday that the first round of post-Brexit trade talks with the European Union had thrown up "significant differences" but said there had been a "constructive tone". "In some areas there seems to be a degree of common understanding of how to take the talks forward. In other areas, such as fishing, governance, criminal justice and the so-called 'level playing field' issues there are, as expected, significant differences," a government spokesperson said. ar/phz/jxb