The current coronavirus outbreak is the biggest challenge for the world since World War Two, UN Secretary General António Guterres has warned.

He said it could bring a recession "that probably has no parallel in the recent past", the BBC reports.

Mr Guterres was speaking at the launch of a UN report on the potential socioeconomic impact of the outbreak.

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The number of confirmed cases around the world is now nearing 860,000, with more than 42,000 deaths.

The number of cases reported in Ukraine raised to 645, with 17 lethal ones and 10 recoveries so far.