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Iran’s Foreign Minister Abbas Araghchi warned on Sunday that any attempt to bypass the Strait of Hormuz routes agreed with the United States would “increase tensions” in the Middle East, as the countries traded attacks and accusations of violating a fragile ceasefire in the region.

Araghchi’s warning came after the US military said it carried out new strikes on early Sunday on multiple targets in Iran, in response to a fresh attack on a ship transiting the Strait of Hormuz.

Tehran responded by launching strikes against US bases in Bahrain and Kuwait.

The exchanges underscored the fragility of a Pakistan-brokered interim peace deal aimed at ending a war launched by the United States and Israel on February 28, which disrupted shipping through the Strait of Hormuz and rattled global energy markets.