Tensions Rise as China Blocks Philippine Scientists in South China Sea

China has warned the Philippines against involving itself in the Taiwan issue amid escalating tensions over the South China Sea. Beijing emphasized that Taiwan is a separate internal matter and cautioned Manila against linking it to their maritime disputes. The warning comes after the Philippines announced military upgrades near Taiwan and reports of US involvement in constructing a civilian seaport in the area. The US has reaffirmed its defense treaty with the Philippines, expressing concern over China's aggressive actions in the region.