A man cycles past the London Eye by the Thames in London, Britain, on Feb. 17, 2021. (Xinhua/Han Yan)

"I'm in very much the view that we should do everything we can not to blow it nationally," said ONS head Ian Diamond. "We have done fantastically well in the last couple of months but we are not completely out of the woods yet."

LONDON, March 6  -- Britain's COVID-19 lockdown has been a "success" but the country is "still not out of the woods," the chief of the British Office for National Statistics (ONS) said Saturday.

"I think this lockdown has been a success but at the same time, while we have seen major reductions, we are still relatively high," Ian Diamond, head of the ONS, told the BBC.

"I'm in very much the view that we should do everything we can not to blow it nationally," he said. "We have done fantastically well in the last couple of months but we are not completely out of the woods yet."