Boris Johnson wants to build a bridge to France

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British Foreign Secretary Boris Johnson attends an official dinner at the Victoria and Albert Museum in London.

U.K. Foreign Secretary Boris Johnson is reportedly entertaining the proposition of building a bridge from Britain to France.

Johnson said a 22-mile crossing to connect the U.K. and France should be built across the English Channel, according to several British media reports Friday.

He apparently made the suggestion at the Sandhurst military academy in southern England on Thursday, during French PresidentEmmanuel Macron’s first official visit to the U.K.

The Daily Telegraph and Sky News reported that, when Johnson made the suggestion, Macron said: “I agree, let’s do it.”

According to the Telegraph, Johnson said that it was “ridiculous” the two countries were “linked by a single railway,” the Eurostar.

The minister has previously supported the idea of building a road tunnel beneath the Channel, and was a big advocate for London’s Garden Bridge — a failed £200 million ($278 million) project to build a bridge across the River Thames covered in trees and shrubbery — during his time as the capital’s mayor.

Britain’s departure from the European Union was high on the agenda during Macron’s visit. U.K. Prime Minister Theresa May will offer France £44.5 million ($62 million) to improve border security in Calais and other ports along the Channel, while the leaders also signed a treaty to speed up the processing of migrants in the coastal French town applying for asylum.