Attending the ceremony virtually on Friday, the US ambassador to Indonesia, Sung Kim, said the maritime center would be part of ongoing efforts between the two countries to bolster security in the region.

"As a friend and partner to Indonesia, the United States remains committed to supporting Indonesia's important role in maintaining regional peace and security by fighting domestic and transnational crimes," he said, according to a statement from Bakamla, Indonesia's maritime security agency.

The training center, located at the strategic meeting point of the Malacca Strait and the South China Sea, will be run by Bakamla and houses classrooms, barracks and a launch pad, the agency said.

The US collaboration with the world's largest archipelagic nation comes amid rising tensions in the South China Sea, with the Philippines protesting the presence of hundreds of Chinese vessels in the Spratly islands this May.