UK PM Johnson stable overnight and in good spirits: Spokesman

British Prime Minister Boris Johnson was stable overnight in intensive care after his conditions deteriorated, and he remains in good spirits, his spokesman said at a regular briefing on Tuesday.

The spokesman told reporters the PM was receiving standard oxygen treatment for COVID-19, and was not on a mechanical ventilator.

According to Downing Street, Johnson is "stable" in hospital and has not been diagnosed with pneumonia.