Boris Johnson, UK prime minister, departs from number 10 Downing Street on his way to make a speech in Parliament in London, UK, on June 16, 2020. (PHOTO / BLOOMBERG)

Boris Johnson warned Germany’s Angela Merkel that the UK is ready to do without a trade deal if the European Union wasn’t prepared to compromise.

The UK prime minister spoke to the chancellor Tuesday, as Brexit negotiators held informal talks over a private dinner. Negotiations are stuck over questions including fishing rights, the future influence of EU courts in UK laws, and how far Britain will be able to loosen its rules and still enjoy access to the single market.

Negotiations are stuck over questions including fishing rights, the future influence of EU courts in UK laws, and how far Britain will be able to loosen its rules and still enjoy access to the single market

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“The prime minister underlined the UK’s commitment to working hard to find an early agreement out of the intensified talks process,” Johnson’s office said in a statement later. “He also noted that the UK equally would be ready to leave the transition period on Australia terms if an agreement could not in the end be reached.”

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“Australia terms” is how the UK government refers to not having a trade deal. Johnson promised voters at last year’s election that he had an “oven-ready” Brexit deal. The transition period during which trade continues as though the UK was still an EU member runs out at the end of 2020. If agreement can’t be reached, both sides face a further economic shock on top of the damage already done by coronavirus.