UN Secretary-General Antonio Guterres has warned of many years of mass starvation if the growing global food crisis is not stopped.

Speaking at a US-sponsored ministerial conference on food security in New York, he said the war in Ukraine has exacerbated a food security situation already exacerbated by global warming and the COVID-19 pandemic..

Guterres called on Russia to end the blockade of grain exports from Ukraine.

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At the same time, Guterres stressed that "