The United States on Tuesday retrieved the possible remains of service members who went missing in Myanmar during the Second World War, marking the first such mission to Myanmar carried out by U.S. military aircraft, American officials said.

After a brief ceremony, the remains were taken from Myanmar's second-largest city, Mandalay, to a laboratory in the United States for further analysis and identification.

"We remember. You are not forgotten," said the U.S. ambassador to Myanmar, Scot Marciel, at the ceremony. He said the mission was meant to honor the memory of the fallen service members and to show appreciation for their service.