Scotland will go into a new lockdown with people ordered to stay at home for the rest of January to tackle the escalating COVID-19 crisis.
First Minister Nicola Sturgeon told the Scottish parliament that from midnight on Monday people would face a legal requirement to stay at home except for essential purposes.
Schools will close for all but the children of essential workers.
It is similar to the lockdown imposed at the start of the pandemic in March last year.
"The situation ... is extremely serious," Sturgeon said.
She added that the new variant accounted for nearly half of new cases in Scotland and is 70 per cent more transmissible.
The United Kingdom has the world's sixth-highest official coronavirus death toll - 75,024 - and the number of new infections is soaring across the country.
England, Scotland, Wales and Northern Ireland implement their own COVID-19 responses though they are trying to coordinate more across the UK.
A preliminary report depicted confusion in the cockpit shortly before an Air India jetliner crashed, killing 260 people last month, after the plane's engine fuel cutoff switches almost simultaneously flipped, starving the engines of fuel.
US President Donald Trump defended the state and federal response to deadly flash flooding in Texas on Friday as he visited the stricken Hill Country region, where at least 120 people, including dozens of children, perished a week ago.
Russia pounded Ukraine with hundreds of drones and dozens of missiles on Saturday, in the fourth major attack this month, targeting western cities and killing at least two people in Chernivtsi on the border with Romania.
Thirty Kurdistan Workers Party (PKK) fighters burned their weapons at the mouth of a cave in northern Iraq on Friday, marking a symbolic but significant step toward ending a decades-long armed conflict against Turkey.