Tim Barrow the new UK man in Brussels

Career diplomat Sir Tim Barrow will replace Sir Ivan Rogers as the UK's top civil servant in Brussels, sources have confirmed.

The former ambassador to Russia will take over the crucial role following the surprise resignation of the UK permanent representative just weeks before the expected start of Brexit withdrawal negotiations.

Sir Ivan had hit out at the "ill-founded arguments and muddled thinking" of politicians in a fiery resignation letter.

The Government is expected to formally confirm his successor imminently.