United States Secretary of State Marco Rubio speaks to journalists before boarding his plane at Indira Gandhi International Airport in New Delhi, India, Monday. (AP Photo/Julia Demaree Nikhinson, pool)

WASHINGTON (AP) — President Donald Trump said Monday that any agreement to end the Iran war should include a requirement for several additional countries, including Saudi Arabia and Pakistan, to join the Abraham Accords, the U.S.-brokered agreements from Trump’s first term aimed at normalizing relations with Israel.

Trump said in a social media post that negotiations are “proceeding nicely” but tied any eventual agreement to expanded participation in the 2020 accords.

The proposal came as the emerging Iran deal faced criticism from fellow Republicans who favor a harder line on Iran, and it could add new diplomatic complications to the negotiations.

Trump pointed to Saudi Arabia and Qatar as countries that should “immediately” sign on, alongside Pakistan, Turkey, Egypt and Jordan. Bahrain and the United Arab Emirates became the first countries to join in 2020.

He wrote that “after all the work done by the United States to try and pull this very complex puzzle together, it should be mandatory that all of these Countries, at a minimum, simultaneously, sign onto the Abraham Accords.”

Trump has long hoped Saudi Arabia would join, but the kingdom has maintained that any normalization deal requires first establishing a clear path for Palestinian statehood. That’s also key for Pakistan, which is among the countries that do not have diplomatic relations with Israel.

Islamabad-based analyst Syed Mohammad Ali said Pakistan’s position on Israel remains unchanged despite Trump’s latest proposal.

The president said he brought up the Abraham Accords plan with leaders during negotiations on Saturday. He said he would accept “one or two” countries declining to sign, but said most should be willing. Egypt and Jordan already formally recognize Israel and have long-standing peace treaties. Turkey first recognized Israel in 1949.

Masood Khan, Pakistan’s former ambassador to the United States, said it remains to be seen how workable the proposal might be for the countries on Trump’s list.

“The invocation of the Abraham Accords at this stage gives an altogether new dimension to the diplomatic and mediatory processes because this issue was not on the agenda,” he said, pointing to the domestic pressure Trump is facing to strike a favorable deal.

Still, Khan said, “the diplomatic track is still working, and I believe Pakistan is very much at the center of it, supported by regional countries.”

It remains unclear when or how any deal with Iran might be completed. Trump suggested even Iran could eventually sign on to the accords, if an agreement is reached.

The accords are a series of diplomatic, economic and security agreements created with U.S. influence during Trump’s first term, originally between Israel and the United Arab Emirates and Bahrain, followed by Sudan, Morocco, and, more recently, Kazakhstan.

They were framed as an effort to promote cooperation among countries in the Middle East and North Africa, and the administration saw them as partly paving a path toward full ties with Israel.

An Iranian delegation led by parliament speaker Mohammad Bagher Qalibaf traveled to Qatar on Monday as part of talks, though it wasn’t immediately clear what would be discussed. Qalibaf led historic face-to-face talks with Vice President JD Vance in Pakistan last month.

Iran’s Foreign Ministry spokesman, Esmail Baghaei, said that while understandings have been reached on “a large portion of the issues,” there was still work to be done. “To say that this means an agreement is on the verge of being signed is not something anyone can claim,” he told reporters.

In the 12 weeks since the U.S. and Israel launched the war with attacks that killed Iran’s Supreme Leader Ayatollah Ali Khamenei and other top officials, Tehran has insisted that any deal focus on ending the fighting on all fronts. That includes Lebanon, where the Iranian-backed Hezbollah militant group has been fighting Israel since two days into the war.

A fragile ceasefire has held since April 7, despite occasional drone and missile attacks on the United Arab Emirates and some exchanges of fire in the Strait of Hormuz. A more permanent truce would allow for global shipping, including an estimated 20% of the world’s oil, to begin flowing through the strait again. It also would allow the rebuilding of energy and other infrastructure in the region.

The stated objectives of the U.S. and Israel were to dismantle Iran’s nuclear program, curb its missile program and end its support for armed proxies.