Iranian Foreign Minister Seyed Abbas Araghchi said Friday that Iran has sent the United States a proposal that could allow the Strait of Hormuz to reopen within seven days if certain conditions are fulfilled.

Speaking to reporters at the U.N. headquarters in New York, Araghchi said Iran had delivered a “concrete seven-day plan” to Washington through Qatar.

He said the seven-day period would begin once the United States agrees to the proposal.

Under the plan, Washington would have to take a number of measures that Iran believes could require four or five days, Araghchi said. The strait would then be reopened on the sixth day, followed by the start of negotiations with the United States on the seventh day toward a final agreement covering mutually agreed issues.

Araghchi said the measures expected from Washington were not new and had already been included in a memorandum of understanding signed by the leaders of the two countries in June.

“If there is seriousness in the U.S. side to come to a deal and reopen the Strait of Hormuz, everything is now prepared,” Araghchi said.

“The choice now rests with the United States,” he added, stressing that Iran would not accept coercion, threats or intimidation and would not give up its sovereign rights under pressure.

The United States and Iran signed an MoU on June 18 aimed at ending the war in the region on all fronts, including Lebanon.

Under the agreement, the two sides were expected to begin negotiations within 60 days, with the deadline falling on Aug. 17, to reach a final deal. However, the future of the negotiations remains uncertain following a series of recent escalations between Washington and Tehran.