Pubs, cafes and restaurants in Wales will have to shut at 10pm every night under new measures to control the rising rate of coronavirus, BBC Wales understands.
The measures, to come into force on Thursday, follow a decision by the UK government to do the same in England.
Sales of alcohol from off-licences and supermarkets after 10pm will also be stopped.
Pubs will also be required to provide table service only.
The First Minister Mark Drakeford is expected to reiterate that people should work from home if they can, in a message to be broadcast later.
He is also expected to ask people not to travel unnecessarily.
Six areas of Wales are now under local lockdown restrictions, meaning people cannot travel in or out of them without a good excuse such as work or education.
Public Health Wales figures reported 281 further cases of coronavirus on Tuesday, the highest number of cases since April.
In his broadcast, to be made after Boris Johnson’s prime ministerial address at 20:00 BST, it is understood Mr Drakeford will warn that coronavirus could gain a foothold in communities across Wales over the weeks and months ahead.