BREXIT talks are going nowhere, according to the UK's chief negotiator.

The UK is still scheduled to leave the European Union at the end of the year.

Extending that deadline would mean agreeing a change by July 1 - something Boris Johnson has said he will not try to do.

But as the latest round of deal talks ends, UK chief negotiatior David Frost has said these resulted in "very little" progress.

He claimed Brussels is to blame for its insistence on including a set of "novel and unbalanced proposals" regarding a level playing field on standards.

And he said it is "hard to understand why the EU insists on an ideological approach" to negotiations on fishing rights.

But the EU's chief negotiator Michel Barnier insisted that the UK could "not have the best of both worlds" in the exit deal.

Speaking at a press conference in Brussels after the third negotiating round, Barnier said: "Despite its claims, the United Kingdom did not engage in a real discussion on the question of the level playing field - those economic and commercial 'fair play' rules that we agreed to, with Boris Johnson, in the Political Declaration."

He went on: "Our member states have been very clear that, without a level playing field, and without an agreement on fisheries, there will be no economic and trade partnership agreement.

"The next round must bring new dynamism in order to avoid a stalemate between us.

"Let us make a success of round four in the first week of June by making the tangible progress we need."

Meanwhile, Frost said "very little progress" had been made towards agreement on "the most significant outstanding issues".

He stated: "It is very clear that a standard Comprehensive Free Trade Agreement, with other key agreements on issues like law enforcement, civil nuclear, and aviation alongside, all in line with the Political Declaration, could be agreed without major difficulties in the time available.

"The major obstacle to this is the EU's insistence on including a set of novel and unbalanced proposals on the so-called 'level playing field' which would bind this country to EU law or standards, or determine our domestic legal regimes, in a way that is unprecedented in Free Trade Agreements and not envisaged in the Political Declaration.

"As soon as the EU recognises that we will not conclude an agreement on that basis, we will be able to make progress."

On fishing, he stated: "We cannot agree arrangements that are manifestly unbalanced and against the interests of the UK fishing industry.

"It is hard to understand why the EU insists on an ideological approach which makes it more difficult to reach a mutually beneficial agreement."

A senior UK official close to the negotiations said the talks had been "a little bit tetchy at times" and "disruptive".

The next round of talks begins on June 1.

A senior UK official close to the negotiations said both sides remain "optimistic" a deal can be struck.