CAIRO (AP) — Despite U.S. President Donald Trump’s appeal to China, France, Japan, South Korea, Britain and others to send warships to keep the Strait of Hormuz “open and safe” as oil prices soar during the Iran war, no country stepped forward with a commitment on Sunday.

U.S. Energy Secretary Chris Wright told NBC he has been “in dialogue” with some of the countries, without naming them, and said he expected China “will be a constructive partner” in reopening the strait through which one-fifth of global oil exports normally pass.

Iran’s foreign minister, Abbas Araghchi, told NBC that Tehran has been “approached by a number of countries” seeking safe passage for their vessels, “and this is up to our military to decide.” He said a group of vessels from “different countries” had been allowed to pass, without providing details.

Iran has said the strait is open to all except the United States and its allies.

“We don’t see any reason why we should talk with Americans” about finding a way to end the war, Araghchi added, noting that Israel and the U.S. started the fighting with coordinated attacks on Feb. 28 during indirect U.S.-Iran talks. The talks focused on Iran’s nuclear program, and Araghchi said Tehran had “no plan to recover” enriched uranium that is under rubble following U.S. and Israeli attacks last year.

Countries cautious on Trump’s call
“We are intensively looking with our allies at what can be done, because it’s so important that we get the strait reopened,” U.K. Energy Secretary Ed Miliband told Sky News, adding that ending the war is the “best and surest” way to do it.

South Korea’s Foreign Ministry said it “takes note” of Trump’s call and that it “will closely coordinate and carefully review” the situation with the U.S.

Expectations are also high that Trump could ask Japan to send warships when Prime Minister Sanae Takaichi meets him on Thursday at the White House.

There was no immediate response from China.

France previously said it is working with other countries — President Emmanuel Macron mentioned partners in Europe, India and other Asian countries — on a possible international mission to escort ships through the strait but has stressed it would have to be when “the circumstances permit,” when fighting has subsided.

Meanwhile, emergency stocks of oil “will soon start flowing to global markets,” the International Energy Agency said Sunday, describing the collective action to lower prices “by far the largest ever.”

It updated last week’s announcement of 400 million barrels to nearly 412 million. Member countries in Asia plan to release stocks “immediately,” it said, and reserves from Europe and the Americas will be released “from the end of March.”