A demonstrator holds a placard during a protest by dozens of activists outside the Chinese consulate in Manila's Makati financial district June 11, 2013. The Philippines is accusing China of encroachment after three Chinese ships, including a naval frigate, converged just 5 nautical miles from an old transport ship that Manila ran aground on a reef in 1999 to mark its territory. Philippine officials say they fear the Chinese ships will block supplies to about a dozen Filipino marines stationed in abject conditions on the rusting ship, raising tensions over one of Asia's biggest security issues. The area, known as Second Thomas Shoal, is a strategic gateway to Reed Bank, believed to be rich in oil and natural gas. REUTERS/Erik De Castro (PHILIPPINES - Tags: CIVIL UNREST SOCIETY POLITICS MARITIME)