The U.S. military is in talks to develop a civilian port in the remote northernmost islands of the Philippines, the local governor and two other officials told Reuters, a move that would boost American access to strategically located islands facing Taiwan.

U.S. military involvement in the proposed port in the Batanes islands, less than 200 kilometer from Taiwan, could stoke tensions at a time of growing friction with China and a drive by Washington to intensify its longstanding defense treaty engagement with the Philippines.

The Bashi Channel between those islands and Taiwan is considered a choke point for vessels moving between the western Pacific and the contested South China Sea and a key waterway in the case of a Chinese invasion of Taiwan. The Chinese military regularly sends ships and aircraft through the channel, Taiwan's defense ministry has said.