Keir Starmer has called on Prime Minister Boris Johnson to implement a new national lockdown within the next 24 hours.
The Labour leader said the step was needed to curb the outbreak, which he described as "out of control".
He said: "It's no good the prime minister hinting that further restrictions are coming into place in a week or two or three. That delay has been the source of so many problems.
"So I say bring in those restrictions now, national restrictions within the next 24 hours. That has to be the first step to controlling the virus."
On Sunday, Prime Minister Boris Johnson said that schools were safe and children should continue to attend next week.
However, he warned harsher Covid-19 restrictions could be on the way.
Mr Johnson, asked in a BBC interview about concerns that the tier system may not be enough to bring the virus back under control, said that restrictions "alas, might be about to get tougher".
"There are obviously a range of tougher measures that we would have to consider ... I'm not going to speculate now about what they would be."
Despite this, Mr Johnson insisted schools were safe, and advised parents to send their children in, in areas where rules allow it.
"There is no doubt in my mind that schools are safe, and that education is a priority," he said.
Much of England is already living under the toughest level of restriction under a four-tier system of regional regulations designed to stop the spread of the virus and protect the national healthcare system.
Mr Johnson sets policy for England, with rules in Scotland, Northern Ireland and Wales set by their devolved authorities.
Scottish leader Nicola Sturgeon said her cabinet would meet on Monday to discuss possible further steps to limit the spread of the virus, and ordered Scotland's parliament to be recalled.
Britain recorded 54,990 new cases of the disease on Sunday and a further 454 deaths.
The UK government's response has been heavily criticised. But the rollout of vaccines is set to accelerate on Monday with the first 530,000 doses of the newly approved Oxford/AstraZeneca vaccines ready to be administered, Mr Johnson said.
He hoped "tens of millions" would be treated over the next three months.
Millions of pupils are due to return from their Christmas holidays on Monday, and Johnson advised parents to send their children to school where they can.
"There is no doubt in my mind that schools are safe, and that education is a priority," he said.
His comments come after the UK's largest union for teachers said schools in England must stay closed for at least two weeks after the Christmas holiday
Some local authorities and unions have warned against reopening schools and have threatened to act against government advice. Others say closures also have a big negative impact on students.
"We must renew and maintain the consensus that children's time out of school should be kept to the absolute minimum," Amanda Spielman, chief schools inspector, wrote in The Sunday Telegraph.
The National Education Union also said it was unsafe for teachers to be in schools because of inadequate social distancing and ventilation, plus a lack of personal protective equipment.
The reopening of most secondary schools in England has already been delayed by two weeks.
Most primary school pupils in London will be taught remotely next week, a decision described as a “last resort” by education minister Gavin Williamson, but the government is being called on to expand the measures.
Mary Bousted, the joint secretary of the National Education Union, said all schools should be closed to stop the country’s hospitals being overwhelmed.
“We know that pupils now can transmit the virus through their homes, through to their families and into the community – they’re the most effective transmitter of the virus,” she told the BBC.
“You combine that with the new variant being up to 70 per cent more infective than the previous Covid virus, which was very infective, then it’s clear we have to do something to break the chain of rising levels of infection in our community.”
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England-South Africa Test series
1st Test England win by 211 runs at Lord's, London
2nd Test South Africa win by 340 runs at Trent Bridge, Nottingham
3rd Test July 27-31 at The Oval, London
4th Test August 4-8 at Old Trafford, Manchester
AT%20A%20GLANCE
%3Cp%3E%3Cstrong%3EWindfall%3C%2Fstrong%3E%3Cbr%3EAn%20%E2%80%9Cenergy%20profits%20levy%E2%80%9D%20to%20raise%20about%20%C2%A35%20billion%20in%20a%20year.%20The%20temporary%20one-off%20tax%20will%20hit%20oil%20and%20gas%20firms%20by%2025%20per%20cent%20on%20extraordinary%20profits.%20An%2080%20per%20cent%20investment%20allowance%20should%20calm%20Conservative%20nerves%20that%20the%20move%20will%20dent%20North%20Sea%20firms%E2%80%99%20investment%20to%20save%20them%2091p%20for%20every%20%C2%A31%20they%20spend.%3Cbr%3E%3Cstrong%3EA%20universal%20grant%3C%2Fstrong%3E%3Cbr%3EEnergy%20bills%20discount%2C%20which%20was%20effectively%20a%20%C2%A3200%20loan%2C%20has%20doubled%20to%20a%20%C2%A3400%20discount%20on%20bills%20for%20all%20households%20from%20October%20that%20will%20not%20need%20to%20be%20paid%20back.%3Cbr%3E%3Cstrong%3ETargeted%20measures%3C%2Fstrong%3E%3Cbr%3EMore%20than%20eight%20million%20of%20the%20lowest%20income%20households%20will%20receive%20a%20%C2%A3650%20one-off%20payment.%20It%20will%20apply%20to%20households%20on%20Universal%20Credit%2C%20Tax%20Credits%2C%20Pension%20Credit%20and%20legacy%20benefits.%3Cbr%3ESeparate%20one-off%20payments%20of%20%C2%A3300%20will%20go%20to%20pensioners%20and%20%C2%A3150%20for%20those%20receiving%20disability%20benefits.%3C%2Fp%3E%0A
Six large-scale objects on show
- Concrete wall and windows from the now demolished Robin Hood Gardens housing estate in Poplar
- The 17th Century Agra Colonnade, from the bathhouse of the fort of Agra in India
- A stagecloth for The Ballet Russes that is 10m high – the largest Picasso in the world
- Frank Lloyd Wright’s 1930s Kaufmann Office
- A full-scale Frankfurt Kitchen designed by Margarete Schütte-Lihotzky, which transformed kitchen design in the 20th century
- Torrijos Palace dome
Maestro
%3Cp%3E%3Cstrong%3EDirector%3A%20%3C%2Fstrong%3EBradley%20Cooper%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3EStarring%3A%20%3C%2Fstrong%3EBradley%20Cooper%2C%20Carey%20Mulligan%2C%20Maya%20Hawke%3C%2Fp%3E%0A%3Cp%3E%3Cstrong%3ERating%3A%3C%2Fstrong%3E%203%2F5%3C%2Fp%3E%0A
The specs: 2018 Mazda CX-5
Price, base / as tested: Dh89,000 / Dh130,000
Engine: 2.5-litre four-cylinder
Power: 188hp @ 6,000rpm
Torque: 251Nm @ 4,000rpm
Transmission: Six-speed automatic
Fuel consumption, combined: 7.1L / 100km
Company%20profile
%3Cp%3E%3Cstrong%3ECompany%20name%3A%3C%2Fstrong%3E%20Fasset%0D%3Cbr%3E%3Cstrong%3EStarted%3A%20%3C%2Fstrong%3E2019%0D%3Cbr%3E%3Cstrong%3EFounders%3A%3C%2Fstrong%3E%20Mohammad%20Raafi%20Hossain%2C%20Daniel%20Ahmed%0D%3Cbr%3E%3Cstrong%3EBased%3A%3C%2Fstrong%3E%20Dubai%0D%3Cbr%3E%3Cstrong%3ESector%3A%20%3C%2Fstrong%3EFinTech%0D%3Cbr%3E%3Cstrong%3EInitial%20investment%3A%3C%2Fstrong%3E%20%242.45%20million%0D%3Cbr%3E%3Cstrong%3ECurrent%20number%20of%20staff%3A%3C%2Fstrong%3E%2086%0D%3Cbr%3E%3Cstrong%3EInvestment%20stage%3A%3C%2Fstrong%3E%20Pre-series%20B%0D%3Cbr%3E%3Cstrong%3EInvestors%3A%3C%2Fstrong%3E%20Investcorp%2C%20Liberty%20City%20Ventures%2C%20Fatima%20Gobi%20Ventures%2C%20Primal%20Capital%2C%20Wealthwell%20Ventures%2C%20FHS%20Capital%2C%20VN2%20Capital%2C%20local%20family%20offices%3C%2Fp%3E%0A
SPECS
Toyota land Cruiser 2020 5.7L VXR
Engine: 5.7-litre V8
Transmission: eight-speed automatic
Power: 362hp
Torque: 530Nm
Price: Dh329,000 (base model 4.0L EXR Dh215,900)
Sweet%20Tooth
%3Cp%3E%3Cstrong%3ECreator%3A%20%3C%2Fstrong%3EJim%20Mickle%3Cbr%3E%3Cstrong%3EStarring%3A%20%3C%2Fstrong%3EChristian%20Convery%2C%20Nonso%20Anozie%2C%20Adeel%20Akhtar%2C%20Stefania%20LaVie%20Owen%3Cbr%3E%3Cstrong%3ERating%3A%20%3C%2Fstrong%3E2.5%2F5%3C%2Fp%3E%0A
COMPANY PROFILE
Initial investment: Undisclosed
Investment stage: Series A
Investors: Core42
Current number of staff: 47
Profile
Company: Justmop.com
Date started: December 2015
Founders: Kerem Kuyucu and Cagatay Ozcan
Sector: Technology and home services
Based: Jumeirah Lake Towers, Dubai
Size: 55 employees and 100,000 cleaning requests a month
Funding: The company’s investors include Collective Spark, Faith Capital Holding, Oak Capital, VentureFriends, and 500 Startups.
UAE currency: the story behind the money in your pockets
UAE currency: the story behind the money in your pockets
MATCH INFO
Uefa Champions League semi-final, first leg
Tottenham 0-1 Ajax, Tuesday
Second leg
Ajax v Tottenham, Wednesday, May 8, 11pm
Game is on BeIN Sports
'Fantastic Beasts: The Secrets of Dumbledore'
Rating: 3/5
Directed by: David Yates
Starring: Mads Mikkelson, Eddie Redmayne, Ezra Miller, Jude Law
The Library: A Catalogue of Wonders
Stuart Kells, Counterpoint Press
Who's who in Yemen conflict
Houthis: Iran-backed rebels who occupy Sanaa and run unrecognised government
Yemeni government: Exiled government in Aden led by eight-member Presidential Leadership Council
Southern Transitional Council: Faction in Yemeni government that seeks autonomy for the south
Habrish 'rebels': Tribal-backed forces feuding with STC over control of oil in government territory
What can victims do?
Always use only regulated platforms
Stop all transactions and communication on suspicion
Save all evidence (screenshots, chat logs, transaction IDs)
Report to local authorities
Warn others to prevent further harm
Courtesy: Crystal Intelligence
Living in...
This article is part of a guide on where to live in the UAE. Our reporters will profile some of the country’s most desirable districts, provide an estimate of rental prices and introduce you to some of the residents who call each area home.
MATCH INFO
Chelsea 3 (Abraham 11', 17', 74')
Luton Town 1 (Clark 30')
Man of the match Abraham (Chelsea)