Boris Johnson has warned of plans to 'sabotage' the European Union by vetoing the bloc's seven-year budget if a deal is not reached by October 31.

Britain will leave the EU in 25 days without a deal unless senior figures agree to compromise. In the case of a delay Mr Johnson will 'paralyse' the EU, senior aides revealed.

If Brexit is pushed back after October 31 the leader of the Brexit Party, Nigel Farage, could be drafted in as the British Commissioner in Brussels to 'disrupt' meetings, reports claim.

Two cabinet ministers told the Sunday Telegraph they were among others backing the more 'aggressive' approach to Brussels.

It comes after the EU said Mr Johnson's proposals for an exit agreement, which include an plan for customs check on the Northern Irish border, did not 'provide a basis for concluding an agreement'.

Britain will leave the EU in 25 days without a deal unless senior figures agree to compromise, in which case Boris Johnson (pictured leaving Downing Street on Thursday) will 'paralyse' the EU, senior aides revealed

Instead Brussels wants Mr Johnson to keep Northern Ireland in the customs unit - effectively segregating it from the rest of the UK.

Writing in the Sunday Telegraph Steve Barclay, the Brexit Secretary, said: 'We are not backing down.'

Northern Ireland would not be 'set adrift', he added.

Writing in the Sunday Express Mr Johnson encouraged EU chiefs to 'grasp the opportunity that our new proposal provides. The UK is 'packing its bags', he added.

A Downing Street source added that over the coming days Mr Johnson will 'hit the phones' to get a deal done.

Writing in the Sunday Express Mr Johnson encouraged EU chiefs to 'grasp the opportunity that our new proposal provides. The UK is 'packing its bags', he added (file image)

If his proposals are rejected aides say he will 'squat' in No 10 rather than leave.

He could dare the Queen to sack him rather than resigning in order to drive Brexit through on October 31.

One senior figure told The Times: 'Unless the police turn up at the doors of 10 Downing Street with a warrant for the Prime Minister's arrest, he won't be leaving.'