The European Union will widen the criteria for its Iran sanctions regime to include people and entities responsible for obstructing freedom of navigation in the Strait of Hormuz, two EU diplomats told Reuters.

The move comes after the strait, a critical chokepoint for global energy trade, was largely shut for nearly two months, disrupting oil and commodities markets. Tehran effectively closed Hormuz after U.S.-Israeli strikes on Iran began on Feb. 28, cutting off roughly one-fifth of the world’s oil and liquefied natural gas supplies, according to the Reuters report.

“There was a political agreement among ambassadors that we indeed would change the criteria in Iran’s sanctions regime so that we could also list persons and entities that are responsible for the obstruction of the freedom of navigation in the Strait of Hormuz,” one of the diplomats told Reuters.

A second diplomatic source told the news agency that the European External Action Service would need a few weeks to prepare any new listings. The EEAS is responsible for drawing up sanctions designations against individuals and companies, while the European Commission handles broader sector-wide restrictions, according to the report.

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