Senior national security officials from the United States and Taiwan have met to deepen cooperation, the government in Taipei said, the first such meeting in four decades that came amid tense relations between the U.S. and China.

Taiwan's national security chief David Lee met White House national security adviser John Bolton earlier this month, the island's Foreign Affairs Ministry said in a statement Saturday.

The official Central News Agency said the meeting was the first since the island and the United States ended formal diplomatic ties in 1979.