Iran has stressed that it does not impose tolls on ships passing through the Strait of Hormuz, but rather a "certain fee" for services and measures that protect the environment

Iran’s foreign ministry said on Monday that Tehran was collecting fees for “navigational services” on ships transiting the strategic Strait of Hormuz,

Iran effectively shuttered the crucial waterway in the early days of the war and in mid-April the US responded by imposing its own blockade on Iranian ports.