Coronavirus: Number of global cases rises above four million

The global death toll has also risen to above 277,000.

The US remains the worst-hit country, accounting for over a quarter of confirmed cases and a third of deaths.

Experts warn the true number of infections is likely to be far higher, with low testing rates in many countries skewing the data.

Daily death tolls are continuing to drop in some nations, including Spain, but there is concern that easing lockdown restrictions could lead to a "second wave" of infections.

In addition, governments are bracing for economic fallout as the pandemic hits global markets and supply chains. 

A senior Chinese official has told local media that the pandemic was a "big test" that had exposed weaknesses in the country's public health system. The rare admission, from the director of China's National Health Commission, Li Bin, comes after sustained criticism abroad of China's early response.

In other recent developments:

• The UK government will proceed with "extreme caution" while exiting lockdown restrictions, according to the country's transport secretary.
• China's president has expressed concern about the threat of the coronavirus to North Korea and offered help.
• Former US President Barack Obama has strongly criticised Donald Trump over his response to the coronavirus crisis, calling it "an absolute chaotic disaster".
• Billionaire Tesla boss Elon Musk has said he will move the electric carmaker's headquarters out of California because of local coronavirus restrictions.
• Robert Redfield, director of the US Centres for Disease Control and Prevention, is self-isolating after coming into contact with someone with coronavirus, according to the Washington Post.
• Health officials in Ghana say more than 500 workers at an industrial facility have tested positive for coronavirus, while the total number of daily cases in the country has jumped by nearly 30% - just a day after authorities said infections had reached its peak.

This week, some lockdown measures have begun easing in Italy, once the global epicentre of the pandemic. Italians have been able to exercise outdoors and visit family members in their region.

France has recorded its lowest daily number of coronavirus deaths for more than a month, with 80 deaths over the past 24 hours. Authorities are preparing to ease restrictions from Monday, as is the government in neighbouring Spain.

Meanwhile lockdowns are continuing in countries like South Africa, despite calls from opposition parties for it to end.

In South Korea, renewed restrictions are being imposed on bars and clubs after a series of transmissions linked to Seoul's leisure district.

Russia also cancelled a military parade in Moscow, planned as part of the country's Victory Day celebrations. Instead, President Vladimir Putin hosted a subdued event on Saturday, laying roses at the Eternal Flame war memorial.

But despite scientific evidence, leaders of several countries have continued to express scepticism about the virus and the need for lockdowns.

In Belarus, thousands of soldiers marched to celebrate Victory Day, as President Alexander Lukashenko rejected calls for tougher measures. 

British medical journal The Lancet has written a scathing editorial about Brazilian President Jair Bolsonaro, calling him the biggest threat to his country's ability to contain the spread of coronavirus. Brazil is currently reporting the highest number of cases in Latin America - over 10,000 more on Saturday, bringing the national total to nearly 156,000. But despite the outbreak, President Bolsonaro continues to dismiss the virus' severity and has clashed with governors over lockdown measures.

Frustrations about the outbreak turned violent in Afghanistan, and at least six people died during clashes between protesters and security forces. The violence started after demonstrators gathered in Firozkoh, the capital of Ghor province, to complain about the government's perceived failure to help the poor during the pandemic.