Oman has presented Iran with a plan backed by Persian Gulf states to manage the Strait of Hormuz, including collecting voluntary fees for using it, a Gulf source and a Western diplomat said on Tuesday.

The Omani proposals are intended to serve as a basis to end the disruption to trade through the strait caused by the U.S.-Israeli war on Iran.

But a U.S. official on Tuesday again rejected the idea of tolls or fees for ships transiting the strait, reiterating that it is an international waterway that should be free of Iranian control or restrictions. The ?official said the deal under discussion would not include any tolls or fees.