Foreign Minister Taro Kono has warned two candidates vying to replace Prime Minister Theresa May that a no-deal Brexit would be so disruptive Japanese capital's 35-year bet on the U.K. could end.

In an appeal to Boris Johnson and Jeremy Hunt, Foreign Minister Taro Kono said Japan did not want a no-deal Brexit, that some companies were already moving out and that more investment could go.

"I know Boris and I know Jeremy, both of them pretty well," Kono said Thursday in Osaka, where a Group of 20 summit began Friday. "I have communicated with them that Japan wouldn't want a no-deal Brexit. So hopefully Brexit could be done through an ordinary and calm way."