The UK has reported nearly 700 new deaths, taking its toll to more than 3,500.

The news came as a new hospital was opened in the capital, just over a week after work on it began.

British Prime Minister Boris Johnson, meanwhile, said on Friday he was remaining in isolation with mild symptoms of COVID-19, including a raised temperature, seven days after he first tested positive for the new coronavirus.

Al Jazeera's Jonah Hull reports from London.