UK's Johnson: London, southeast England going under tougher COVID rules

Britain's Prime Minister Boris Johnson holds a news conference in London

LONDON (Reuters) - British Prime Minister Boris Johnson announced on Saturday that London and southeast England would be placed into a new higher tier of COVID-19 restrictions because of the spread of a more infectious variant of the virus.

"It may be up to 70% more transmissible than the old variant, the original version of the disease," Johnson told a news conference.

(Reporting by Michael Holden; Editing by William Schomberg)