The United States' response to Iran's seven conditions in a proposal to reopen the strategic Strait of ​Hormuz was "insufficient", Iran's security chief, Mohsen Rezaei, was quoted by ‌state media on Sunday as saying.

Iran presented a proposal during the UN General Assembly under which the Strait of Hormuz waterway could be reopened and ​normal maritime passage restored within seven days if the conditions ​were met, to which the US later replied via ⁠Qatari intermediaries.

Washington needs to clarify the issues that remain unclear to ​Tehran, Rezaei, Secretary of the Supreme National Security Council, said, adding "we ​presented seven conditions to the Americans and clearly stated that the Strait of Hormuz would not be opened to them, and no negotiations would take place, ​until these conditions are met."

The White House did not immediately ​respond to a Reuters request for comment.

Rezaei said Iran is "no longer in the ‌process ⁠of responding to the Americans".

"In their response, they have accepted some of our conditions, while others remain unclear," he added.

Tehran said late in September that it had received a US response to its latest ​proposal to resurrect the ​collapsed ceasefire ⁠in the Gulf, days after US President Donald Trump said he had rejected it.

Qatar and other mediators ​have transmitted messages between Washington and Tehran in ​an effort ⁠to end the conflict and reopen the Strait of Hormuz, the conduit for a fifth of the world's oil and liquefied natural ⁠gas before ​the war that began at the ​end of February with US and Israeli attacks on Iran.