A Philippine plane warned a Chinese military helicopter over the South China Sea that it was "flying too close," as tension between the U.S. ally and Beijing soars.

At such a critical moment in US history, we need reporters on the ... China claims is its airspace over the hotly disputed Scarborough Shoal off the northwestern Philippines.

OVER THE SCARBOROUGH SHOAL, South China Sea — A Chinese navy helicopter flew within 10 feet (3 meters) of a Philippine patrol plane on Tuesday in a disputed area of the South China Sea ...

The Chinese military, referring to Scarborough Shoal by its Chinese name, said the plane had “illegally entered the airspace of China’s Huangyan Island without the Chinese government’s ...