The World Health Organization (WHO) has recorded a record one-day increase in the number of new coronavirus infections, with 307,930 reported in 24 hours.
The agency said the death toll increased by more than 5,500, bringing the global total to 917,417.
The largest increases in infections were reported in India, the United States and Brazil.
Globally, there have been more than 28 million confirmed cases, half of which are in the Americas.
The previous one-day high for new cases was September 6, when the WHO reported 306,857 new infections.
Where are the cases increasing the fastest?
According to the WHO, India reported 94,372 new cases on Sunday, followed by the United States with 45,523 and Brazil with 43,718.
More than 1,000 new deaths have been recorded in the United States and India, while Brazil said 874 people have died from Covid-19-related illness in the past 24 hours.
India has the second highest number of confirmed cases in the world, behind the United States. Last week, it reported nearly two million cases of Covid-19 in August, the highest monthly tally in the world since the start of the pandemic.
The country recorded an average of 64,000 cases per day – an 84% increase from the average daily cases in July, according to official data. The death toll has exceeded 1,000 a day since the start of September.
Brazil has recorded more than four million cases, the third highest in the world. It has the highest death toll in Latin America, with around 131,000 to date.
The United States has recorded nearly a quarter of the total number of coronavirus cases worldwide – more than six million. He saw an increase in the number of daily cases in July, but the numbers have declined since then.
The United States has the highest recorded death toll in the world from Covid-19, with more than 194,000 dead.
What is the situation elsewhere?
Countries in Europe are recording a growing number of daily cases amid fears of a resurgence of the virus.
Local lockdowns have been imposed in the worst affected areas, and there have been new calls for people to wear headgear and follow social distancing rules.
Other countries that have seen a resurgence of the virus are Peru, Israel, South Korea and Australia.
Police in the Australian state of Victoria arrested more than 70 protesters on Sunday for flouting stay-at-home orders. About 250 people attended the protest in the city of Melbourne, which was promoted by social media groups sharing conspiracy theories of the pandemic.
Victoria was the epicenter of the outbreak in Australia, accounting for 75% of cases and 90% of deaths.
Israel, meanwhile, will impose a new nationwide lockdown as coronavirus cases continue to rise. Severe restrictions will take effect on Friday – the Jewish New Year – and last for at least three weeks, authorities said.
Israel has recorded more than 153,000 confirmed infections and 1,108 deaths from Covid-19, according to a count from Johns Hopkins University.