Spain has reported another record single-day increase in coronavirus deaths and moved to further tighten its already strict national lockdown, as governments in Europe and beyond struggle to contain the pandemic.
Italy reported 889 new deaths, bringing its total to more than 10,000.
"That is why we have to strictly apply the control measures", he said. Spain's emergency health chief, Fernando Simón, said: "It's true that we can't test all those infected and there may be some that escape us". ICUs in six of Spain's 17 autonomous regions were operating at full capacity.
Trump's reversal came on the same day the USA death toll topped 2,100, more than doubling in just three days.
More than 30,800 deaths had been reported worldwide by Sunday, according to a Johns Hopkins University tally, as the virus continued to leave a devastating imprint on almost every aspect of society: wiping out millions of jobs, overwhelming healthcare services and draining national treasuries.
Sànchez described the crisis as "the most hard moment for the European Union since its foundation" and said the 27-member bloc had to be "ready to rise to the challenge". Italy has suffered the most deaths from the virus epidemic and was the first Western country to introduce severe restrictions on movement after uncovering the outbreak just over five weeks ago.More news: Priyanka Chopra not yet ready to start family with Nick Jonas
Globally, the death toll has surged past 30,000 and officials in some countries say the worst still lies ahead.
11,636 people have volunteered to help the Italian Civil Protection with the coronavirus crisis, and the government received more than 7,714 responses from former nurses who intend to return to medical practice.
Spain's coronavirus death toll rose by 832 cases overnight to 5,690, the health ministry has revealed. The entire shipment of 1.3m masks would be returned, it said.
On Friday, La Repubblica reported that the nation's overall death toll among doctors is now at 51.
Two high-speed trains carried patients from Mulhouse and Nancy toward hospitals along France's western coast, where the outbreak has been limited so far.
Dr Craig Smith, who heads the surgery department at New York-Presbyterian/Columbia University Medical Centre, said the hospital will probably be forced into "apocalyptic scenarios" in the coming weeks in which ventilators and intensive care unit beds will need to be rationed.More news: A Cat Was Reported To Test Positive With Coronavirus In Belgium
Egypt shut its beaches as cases in the Middle East surpassed 50,000.
"A quarantine will not be necessary", Trump tweeted, about eight hours after he stunned the NY metropolitan region, the epicentre of the United States coronavirus outbreak, with a proposal to place it under quarantine to prevent residents from leaving.
Edouard Philippe, the French prime minister, warned: "The fight is only just beginning". Airline flights from Hubei province at the center of the coronavirus outbreak resumed Sunday.
Italy's civil protection agency said more than 5200 new cases were recorded in the last 24 hours, the lowest number in four days, for a total of nearly 98,000 infections. "We must prepare to live with this virus until a treatment or vaccine is discovered", he said.
Well over half of Italy's deaths have been recorded in the northern region of Lombardy, where the country's outbreak began.
The US Centers for Disease Control and Prevention (CDC) issued a formal advisory on Saturday, asking residents of New York, New Jersey and CT to "refrain from nonessential domestic travel for 14 days effective immediately".More news: PM announces $1.1bn in health funding