Scots will be banned from visiting other households from Wednesday to curb the spread of coronavirus.
Nicola Sturgeon announced a national ban on household mixing indoors would come in from tomorrow, which previously had been in place in parts of the west of Scotland.
The move will ramp up pressure on Downing Street, as it goes beyond the new rules Boris Johnson announced for England.
The Scottish First Minister, who took part in the Government’s emergency Cobra committee on Tuesday, said she had been advised that Mr Johnson’s plan “on its own will not be sufficient to bring the R number down”.
Those living alone, couples not living together, those who need childcare and tradespeople will be exempt from the measures.
Children under 12 remain exempt from the limit of six people from two households when meeting outside and those between 12 and 18 will be able to meet a limit of six others from six households outdoors.
The rules only apply to meeting in people’s homes, with regulations for outdoor and public indoor meetings remaining the same.
The measures will be reviewed in three weeks.
Ms Sturgeon said: “The measures I am announcing today are tough – I will not pretend otherwise – but they do not represent a full-scale lockdown of the kind imposed in March.
“Indeed, today’s measures are an attempt to avoid another lockdown.”
But she said she was compelled to bring in tougher rules following advice from medical experts.
Ms Sturgeon said Scotland would follow the same rules on hospitality as England – with 10pm closing times for pubs and other hospitality venues.
She added: “However the advice given to the [Scottish]Cabinet by the Chief Medical Officer and National Clinical Director was that this on its own will not be sufficient to bring the R number down.
“They stressed that we must act not just quickly and decisively but also on a scale significant enough to have an impact on the spread of the virus.
“They advise that we must take account of the fact that household interaction is a key driver of transmission.”
Ms Sturgeon said she was keeping a so-called circuit breaker – short period of nationwide lockdown – under review.
She urged Scots not to book foreign holidays for the October half term “unless it is absolutely essential” and warned against car sharing with those outside of their own household.
The majority of new coronavirus cases in Scotland are in those under the age of 40 but a rise is now being seen in the older population.
The First Minister said: “It kills too many old and vulnerable people.
“And for younger, healthier people, while the risks of dying from it are much lower – though not non-existent – it can still result in long-term, serious health problems.
“That’s why action to bring it back under control is necessary – and to bring the R number down again, the action we take now must go beyond the step we announced almost two weeks ago to restrict indoor and outdoor gatherings to six people from two households.”