Monetary fund warns the US and China against continuing trade war, saying it could damage coronavirus recovery

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The head of the International Monetary Fund has signalled a possible downward revision of global economic forecasts, and warned the United States and China against rekindling a trade war that could weaken a recovery from the coronavirus pandemic.

Kristalina Georgieva, the IMF’s managing director, told an online event hosted by the European University Institute that recent economic data for many countries was coming in below the fund’s already pessimistic forecast for a 3% contraction in 2020.

Spain extends state of emergency; Danish agency warns of risk of second wave

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New coronavirus infections in Iran have risen sharply since the country relaxed its restrictions on movement, while France has said it will reimpose strict lockdowns if cases surge when it begins to emerge from confinement next week.

Tehran on Wednesday reported 1,680 new infections, nearly double the figure four days ago and the highest daily figure since 11 April when it allowed a phased return to work amid fears of economic collapse. A ban on travel between cities and business at shopping malls has since also been lifted.

Latvia, Lithuania and Estonia will open their borders to each others’ citizens from 15 May, creating a Baltic “travel bubble” within the EU.

Hundreds of Indian police have tested positive for the coronavirus in recent days, raising alarm among an over-stretched force as it attempts to enforce the world’s largest lockdown.

At least 90,000 healthcare workers worldwide – and possibly twice that – are believed to have been infected with Covid-19, and more than 260 nurses have died, the International Council of Nurses (ICN) said.

Professor Salim Abdool Karim, the South African government’s chief adviser, said the country’s strict lockdown and proactive screening and testing programme had helped limit its death toll to 148.

France confirms lockdown-easing from Monday as WHO warns on domestic violence

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Another record rise in coronavirus infections has propelled Russia past Germany and France to the fifth highest tally in the world, as the French government confirmed the country would start gradually lifting its strict eight-week lockdown from Monday.

With much of Europe now easing itself out of confinement, Russia has become the continent’s new Covid-19 hotspot. More than half of the country’s 177,160 cases are in Moscow and the capital’s mayor, Sergei Sobyanin, said research suggested the actual number was nearer 300,000, more than triple the official figure.

Related: Covid-19 puts Putin's power plans on hold and economy in peril

Coronavirus cases in India have risen past 50,000, according to the country’s health ministry, with the pace of infection showing no sign of abating.

A new report suggested January’s Sundance film festival, the annual gathering of cinephiles in Park City, Utah, may have been a key early coronavirus hub in the US.

Iran said on Thursday its coronavirus outbreak was “relatively stable” as it announced more than 1,000 infections for a fourth straight day.

Poland has postponed Sunday’s presidential election. The postal-only ballot will now take place as soon as possible, but probably not before June.

Mayors in many of the world’s leading cities have said there can be no return to business as usual in the aftermath of the coronavirus crisis if humanity is to escape catastrophic climate breakdown.

Italy’s government and Roman Catholic bishops signed an agreement to allow the faithful to attend mass again from later this month.

Oil price rises and shares end week on a high despite growing economic damage from coronavirus pandemic

Global markets rose on Friday despite mounting economic damage from the coronavirus pandemic, as tensions eased between the White House and Beijing.

Share prices on Wall Street and in Europe ended the week on a high amid rising hopes that lockdown measures could be lifted soon to reboot growth and that a full-blown global trade war could be averted.

Related: US Nasdaq index recovers all of 2020's losses triggered by Covid-19