Boris Johnson has postponed the next stage of easing lockdown restrictions planned for Saturday, which would have seen the return of casinos, bowling alleys, skating rinks, indoor performances and wedding receptions for up to 30 people.
The prime minister also announced pilots of sporting events with crowds and gatherings in conference centres will be delayed.
Face coverings will become mandatory in places such as museums, galleries, cinemas and places of worship in England from 8 August, Mr Johnson said on Friday.
Her comments come after the UK government imposed tougher lockdown restrictions in the areas affected, with people from different households in Greater Manchester, parts of East Lancashire and West Yorkshire banned from meeting each other indoors again.
The UK health secretary said these new restrictions on gatherings – which were announced shortly before the Muslim festival of Eid-al-Adha – were not aimed at curtailing celebration, but that ”immediate action” was needed in these areas.
Muslim leaders slammed the government for giving ”shockingly short notice” for the ban on different households mixing inside their homes or gardens in parts of northern England.
New lockdown rules for northern England
Millions of households across northern England have been banned from cross-household gatherings in homes or pubs under last-minute new lockdown measures introduced overnight, as the government rushed to contain “increasing” transmission of cases, write Vincent Wood and Andrew Woodcock.
The new rules, announced the night before Muslims across the country are set to celebrate Eid al-Adha, are being introduced in Greater Manchester, West Yorkshire and east Lancashire following increased rates of coronavirus transmission.
Hancock claims new rules 'crystal clear'
Matt Hancock has defended his late-night Twitter announcement of the new lockdown rules in northern England by saying "we are moving quickly in some circumstances" to react to Covid-19's spread.
"When you face a pandemic like this it is important sometimes to move quickly," the health secretary told Sky News when challenged on the wisdom of his communications strategy.
"I understand the impact of decisions like these," he added. "I understand that this is not the sort of decision anybody would want to take."
Mr Hancock was challenged on the allegedly confusing nature of the restrictions, given that although households cannot meet indoors, pubs and hairdressers can remain open.
He said: "It is absolutely crystal clear ... what the new rules are and we've brought them in to target specifically the problems that we've been able to see through the data.
"We want to do it with minimum impact. The evidence shows that the biggest risk in terms of the spread of the virus across this area is household transmission, where people are going to see each other in each other's homes when they're not in a household together, and also visiting friends and relatives."
More from Hancock
"We're not seeing as much transmission in terms of people in their place of work or going to retail or other areas, and so we are able to put in place this specific action.
"We're not restricting travel, so people can still go on holiday from the area affected. We're not putting in any restrictions to work."
The view from Manchester
Here's how one regional journalist views the "crystal clear" manner in which Mr Hancock announced his new rules.
Germany infections rising
Germany reported 870 new confirmed coronavirus cases on Friday, according to a tally from the Robert Koch Institute for infectious diseases.
It brought the total number to 208,698. Some 9,141 deaths have been recorded.
The new figure was well up on daily tallies from earlier this week - there were 340 on Monday and 633 on Tuesday.
The average number of daily infections is rising, compared to last month.
PM 'delusional', Labour says
Boris Johnson has boasted of “massive success” in reducing the number of fatalities from coronavirus on the day when new figures showed the UK has had the highest excess death rate of any country in Europe during the crisis, write Jon Stone and Andrew Woodcock.
The prime minister’s claim was branded “delusional” by Labour, who said his record – which has seen the UK top global tables for per-capita deaths from coronavirus – was “appalling”.
Hancock gives more detail
Two households can still meet "at a social distance in a public place outdoors" such as a park where there is lots of space, Matt Hancock has said, but meeting another household in pub gardens or outdoor restaurant space is not allowed under his new rules for the northwest.
Asked about the prospect of crowds gathering together too closely in Friday's heat, the health secretary told the BBC: "It's so important that people follow social distancing rules. My message is people need to keep doing that.
"We've shown we're prepared to take action if that's necessary.
"Having just announced this action last night I don't this morning want to talk about what more we might do, but we have shown we're prepared to take action."
Manchester MP 'inundated' with questions on new rules
Lucy Powell, the Manchester Central MP, has told Times Radio her constituents are baffled by Matt Hancock's last-minute new rules.
She said they included people questioning whether they are able to visit elderly relatives they are looking after who live outside of the restricted area, and whether they can go on holiday with another household elsewhere.
"I've been inundated with questions that I don't know the answers to them," she said.
Trump again suggests delaying election over (what he says are) Covid-19 fears
Donald Trump has doubled down on his proposal to delay the November election, claiming – contrary to all evidence – that absentee voting is prone to fraud, writes Andrew Buncombe.
Trailing badly in the polls to presumptive Democratic candidate Joe Biden, Mr Trump posted a tweet which said voting by mail, which many states are likely to use because of the pandemic, would result in a “fraudulent” vote.
“It will be a great embarrassment to the USA. Delay the Election until people can properly, securely and safely vote???,” he added.
Households can travel to meet up, Hancock admits
A household in an area affected by his new rules could travel to another household outside of the affected areas as long as social distancing guidelines are followed, Matt Hancock has said.
The health secretary told the BBC: "The law is that two households cannot meet in the affected area but obviously this is about having social distancing in place.
"Strictly, the law we're bringing in is that two households cannot meet in the area defined but obviously any two households that are meeting should follow social distancing guidelines."
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