The World Health Organisation (WHO) urged rich countries on Friday to reconsider plans to vaccinate children and instead donate COVID-19 shots to the COVAX scheme for poorer countries.
WHO chief Tedros Adhanom Ghebreyesus also said the second year of the pandemic was set to be more deadly than the first, with India a huge concern.
"I understand why some countries want to vaccinate their children and adolescents, but right now I urge them to reconsider and to instead donate vaccines to #COVAX," he told a virtual meeting in Geneva.
Indian Prime Minister Narendra Modi sounded the alarm over the rapid spread of the coronavirus through India's vast countryside on Friday, as the country's official tally of infections crossed 24 million and over 4,000 people died for the third straight day.
More than 160.71 million people have been reported to be infected by the coronavirus globally and 3,477,379 have died, according to a Reuters tally.
Infections have been reported in more than 210 countries and territories since the first cases were identified in China in December 2019.
President Donald Trump said on Sunday the US Navy would immediately start blockading the Strait of Hormuz, raising the stakes after marathon talks with Iran failed to reach a deal to end the war, jeopardising a fragile two-week ceasefire.
At least 200 people are feared dead after Nigerian military jets struck a village market while pursuing rebels in the northeast of the country on Saturday night, a councillor for the area and residents said on Sunday.
Russia and Ukraine accused each other on Sunday of breaching the 32-hour ceasefire in their four-year war, reporting more than a thousand drone and shelling attacks just hours after the truce began on Saturday to mark Orthodox Easter.
At least 30 people were killed on Saturday in a stampede at the Laferriere Citadel in the northern countryside of Haiti, authorities said, warning that the death toll could rise.
A cyclone battered New Zealand's North Island on Sunday, cutting power to thousands of residents and forcing hundreds to evacuate, as officials warned conditions would worsen through the day.