California has reimposed restrictions on businesses and public spaces amid a spike of coronavirus infections in America’s most populous state, according to BBC News.

Governor Gavin Newsom on Monday ordered an immediate halt to all indoor activities at restaurants, bars, entertainment venues, zoos and museums.

In the worst-affected counties of the south-western US state, churches, gyms and hairdressers will also close.

California has more than 330,000 Covid-19 cases, with more than 7,000 deaths.

The reimposition of the restrictions in the state with nearly 40 million people was prompted by a 20% rise in people testing positive in the past two weeks and increasing numbers of Californians are now needing intensive care.

Infections have risen rapidly in about 40 of America’s 50 states over the last two weeks, according to an analysis by Reuters news agency.

Along with California, Florida, Arizona and Texas have emerged as centres of the pandemic. Towns and counties across Florida have been reinstating restrictions that were lifted in May when infections began to drop.

But on the east coast, New York City – which in April had one of the highest Covid-19 death rates in the world – recorded no new fatalities from the disease for the first time in four months.

There are currently more than 3.3 million confirmed Covid-19 cases across the country, and more than 135,000 deaths, according to Johns Hopkins University.