“I express support for Boris Johnson, his family and the British people at this difficult time,” Macron wrote on Twitter.
The President of France wished Johnson "to overcome this test as soon as possible."
Earlier, a representative of Downing Street reported a deterioration in Johnson's condition and his transfer to the intensive care unit.
The British Prime Minister was hospitalized on the advice of the attending physician due to persisting symptoms of COVID-19.
On March 27, Johnson announced that he had contracted a coronavirus.