Heiko Maas said asking for another extension would show the UK secretly wants to stay in the EU. His harsh criticism comes he said the UK will also not be granted another extension past October. He said: “Another extension could send the signal that they plan to stay in the EU after all.”
Mr Maas added: “They will have to decide what they want by October.
“You cannot drag out Brexit for a decade.”
Last week, the EU gave Theresa May an extension to get Brexit over the line by October 31 with her MPs after failing to meet the original March 29 deadline.
This has left MPs furious as it means the UK will now have to stand in the upcoming European Parliament elections next month.
European Council president Donald Tusk only accepted the extension with the promise the UK would “continue it sincere cooperation” as a member state – including taking part in the elections in May.
Mr Maas told the Financial Times it would be absurd if the Mrs May failed to get her Withdrawal Agreement through the Commons before next month.
He said: “Just think about it: You say you want to leave Europe and then you hold a European Parliament election.”
Meanwhile in the UK, Parliament is in recess for the Easter holiday.
Talks between the Government and Labour are said to be continuing to find a Brexit agreement that will be acceptable to MPs.
The EU has insisted the terms of the UK’s withdrawal, which has already been rejected three times by MPs, cannot be renegotiated.
However, there is potential to strengthen the political declaration, a document setting out the parameters of the UK’s future relations with the EU, ahead of the new Brexit deadline.
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