India, April 21 -- The ongoing conflict involving Iran, the United States and Israel is triggering what could become the most severe energy crisis in history, according to the head of the International Energy Agency.

"This is indeed the biggest crisis in history," Fatih Birol told France Inter radio in an interview broadcast on Tuesday, according to Reuters report.

"The crisis is already huge, if you combine the effects of the petrol crisis and the gas crisis with Russia," he added.

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The escalation in the Middle East has disrupted maritime traffic through the Strait of Hormuz, a key route that carries roughly one-fifth of global oil and liquefied natural gas supplies.

This disruption comes o...