First minister Mark Drakeford says Wales could suffer 1,700 avoidable deaths over the winter “unless we act”.
Pubs and restaurants across Wales will be banned from selling alcohol and be forced to close at 6pm every evening.
The measure announced by first minister Mark Drakeford will come into force from 6pm this Friday.
Cinemas, bowling alleys, bingo halls and other indoor entertainment venues must also shut from the same date.
Mr Drakeford warned that without further measures, the number of people needing hospital treatment for COVID-19 in Wales could rise to 2,200 – and that there could be up to 1,700 avoidable deaths over winter “unless we act”.