On Monday, Locsin told China in a tweet to "get the f--- out" as the two countries engaged in a war of words over the South China Sea.
China and the Philippines have for years contested overlapping territorial claims in the South China Sea, a resource-rich waterway with a total area of about 1.4 million square miles where trillions in dollars of global trade pass.
Bajo de Masinloc, also known as Scarborough Shoal, is a chain of reefs in the South China Sea that lies around 120 nautical miles from the nearest Philippine coast and 470 nautical miles from the nearest coast of China.