Talks between Oman and Iran were "fruitful and some progress was made" during the Omani diplomatic delegation's visit to Tehran on Friday and Saturday, according to Iran Foreign Ministry Spokesman Esmail Baqhaei.

"The two sides exchanged views on common principles and operational mechanisms for managing safe shipping traffic in the Strait of Hormuz while respecting the sovereign rights of the two coastal states," Baghaei said Sunday.

"The Omani delegation left Tehran on Saturday evening, but technical and political consultations between the two sides are continuing," he added.

-ABC News' Somayeh Malekian

The Pentagon said in a statement that it has officially confirmed the identity of the remains of Staff Sgt. Angel Rampersad who was believed to have been killed in action during Friday's Iranian strike on a U.S. base in Jordan last week.

The confirmation came from the Armed Forces Medical Examiner System, according to a Pentagon statement.

Rampersad, 28, of Ozone Park, New York, was posthumously promoted to the rank of staff sergeant.

The other three service members killed in last week’s attacks have also received posthumous promotions.

President Donald Trump met with top advisers behind closed doors at the White House on Friday to discuss his options on Iran, including the possibility of significantly expanding military action against the country, according to two sources familiar with the matter.

The New York Times first reported on the meeting. Trump has held a number of similar strategy sessions with his national security team in the days since the ceasefire broke down.

Trump did not publicly indicate whether he had made up his mind on what course to take when he fielded questions from reporters Friday afternoon.

"As you know, we're locked and loaded. We're locked and loaded and ready to go, but we're talking to them," Trump said during an event in the Oval Office.

-ABC News' Shannon Kingston and Luis Martinez

U.S. military forces disabled a ship on Friday that was attempting to break the blockade, according to a U.S. official.

This is now the fifth ship that has been disabled by U.S. military forces since the blockade against ships leaving or going to Iranian ships was reimposed on July 14.