Prime Minister Boris Johnson warned there are "difficult months to come" in the fight against Coronavirus and urged the nation to "get through this winter together".

But he warned that the Government would impose more lockdown restrictions if people fail to follow the rules.

And he said the situation "will be far better by the spring".

In a televised address to the nation, Mr Johnson said: "If we were forced into a new national lockdown, that would threaten not just jobs and livelihoods but the loving human contact on which we all depend.

"It would mean renewed loneliness and confinement for the elderly and vulnerable, and ultimately it would threaten once again the education of our children. We must do all we can to avoid going down that road again.

"But if people don’t follow the rules we have set out, then we must reserve the right to go further."

The Prime Minister spoke following a surge in Coronavirus cases, which Government scientists warned could lead to 200 deaths each day, unless action is taken.

Earlier in the day, he announced that hospitality venues including pubs would be ordered to close at 10pm and to offer table service only, while office workers were being asked to work from home.

Tough £10,000 fines are being introduced for businesses that fail to follow rules designed to slow the spread of the Covid-19, and the initial fine for failing to wear a face covering when required has doubled to £200.

The measures fall far short of the full national lockdown imposed by the Government in March, but Mr Johnson issued a blunt warning that tougher measures were still possible.

Speaking in the pre-recorded televised statement, he said the current health crisis would last for months. Mr Johnson said: "Though our doctors and our medical advisers are rightly worried about the data now, and the risks over winter, they are unanimous that things will be far better by the spring, when we have not only the hope of a vaccine, but one day soon – and I must stress that we are not there yet - of mass testing so efficient that people will be able to be tested in minutes so they can do more of the things they love.

"That’s the hope; that’s the dream. It’s hard, but it’s attainable, and we are working as hard as we can to get there.

"But until we do, we must rely on our willingness to look out for each other, to protect each other. Never in our history has our collective destiny and our collective health depended so completely on our individual behaviour.

"If we follow these simple rules together, we will get through this winter together. There are unquestionably difficult months to come.

"And the fight against Covid is by no means over. I have no doubt, however, that there are great days ahead.

"But now is the time for us all to summon the discipline, and the resolve, and the spirit of togetherness that will carry us through."

Describing the struggle to control the Covid-19 virus as "the single biggest crisis the world has faced in my lifetime", Mr Johnson suggested cases had risen because too many people had broken the rules.

"When the sickness took hold in this country in March, we pulled together in a spirit of national sacrifice and community. We followed the guidance to the letter. We stayed at home, protected the NHS, and saved thousands of lives.

"And for months with those disciplines of social distancing we have kept that virus at bay.

"But we have to acknowledge this this is a great and freedom-loving country; and while the vast majority have complied with the rules there have been too many breaches – too many opportunities for our invisible enemy to slip through undetected.

"The virus has started to spread again in an exponential way. Infections are up, hospital admissions are climbing."

The situation in France and Spain, which experienced a second wave of the virus before the UK, showed that it was just as deadly as ever, he said.

"So today I set out a package of tougher measures in England – early closing for pubs, bars; table service only; closing businesses that are not covid secure; expanding the use of face coverings, and new fines for those that fail to comply;

North East lockdown restrictions

"And once again asking office workers to work from home if they can while enforcing the rule of six indoors and outdoors – a tougher package of national measures combined with the potential for tougher local restrictions for areas already in lockdown. I know that this approach – robust but proportionate – already carries the support of all the main parties in Parliament."

He rejected the argument made by some people that the country should simply attempt to protect the old and those with pre-existing medical conditions, while allowing the rest to live their lives as normal. In this was attempted then the virus "would inevitably find its way through to the elderly as well", he said.

"That’s why we need to suppress the virus now, and as for that minority who may continue to flout the rules, we will enforce those rules with tougher penalties and fines of up to £10,000. We will put more police out on the streets and use the army to backfill if necessary."