Iran has issued tough new demands for reopening the strait of Hormuz, while the United Arab Emirates said one of its ships was targeted by an Iranian missile, as a deal to open the strategic waterway remained out of reach on Saturday.

Iran’s politburo-like body known as the supreme national security council said the strait of Hormuz will not open until the United States “corrects its behaviour”, with its state broadcaster publishing a statement from the council’s secretary, Mohammad Bagher Zolghadr, who is also a commander in the Islamic Revolutionary Guard Corps IRGC.

The US must never threaten Iran again, the statement said, and must permanently end the war with Iran and its armed allies in the region. The US must lift the naval blockade of Iranian ports and withdraw its military from the area. It also must “completely compensate” Iran for war damage, lift sanctions and “unconditionally” release frozen assets.

There was no immediate comment from the US, which has wanted an acceptable deal on the strait before ending the blockade. According to the interim deal signed in June, a schedule to end sanctions and a plan for compensation would be part of the final deal, and negotiations would address frozen assets.

Iranian foreign minister Abbas Araghchi said on Saturday that they were close to reaching an agreement on navigation, “specifically the determination of a transit route”. But the waterway’s reopening is contingent on other conditions, he said, in remarks shared on social media, and blamed the situation on what he called the US violation of the interim deal.

Oman, which is mediating and has made relatively few comments on the talks, said in a statement on Saturday that the discussions were ongoing “in a positive and constructive atmosphere”, and condemned attacks on ships on the strait.

Iran has imposed an effective blockade of the strait and wants to charge users for passage, repeatedly attacking ships it accuses of attempting to circumvent its preferred route.

The US opposes any Iranian tolls in the strait, though the June deal allows Tehran to hammer out arrangements for the “future administration” of Hormuz in conjunction with fellow coastal state Oman.

The 60-day period to negotiate a final deal will end in just over a week but could be extended.

Iran has said it was close to reaching a separate deal with Oman to manage the strait, which runs between the two countries.

Continued attacks in the strait, which was free to transit before the war, led to the collapse of an April ceasefire, and mediators have since urged both sides to return to the terms of the June memorandum.

The strait, which is crucial to global supplies of oil and natural gas, had been considered an international waterway before the war. Ship transits remain low.

Meanwhile, a vessel owned by Abu Dhabi’s state-owned Adnoc oil and gas company was attacked while transiting the strait of Hormuz, Emirati authorities said earlier on Saturday. The Foreign Ministry said Iran fired the missile as part of attacks on commercial shipping.

Adnoc said in a statement that there were no casualties following the attack early on Saturday. The company said more than a dozen of its vessels have been attacked by missiles and drones while transiting the strait since the US and Israel launched the war on Iran in February. One crew member has been killed and 20 others wounded, it said.

Adnoc did not elaborate on the location of the attack or any damage.

Later, the United Kingdom Maritime Trade Operations centre said a vessel east of the town of Khasab, Oman, had been struck by a projectile that caused a fire that was put out, with the vessel and crew safe. It was not clear whether this was the Adnoc incident.