MANILA, Philippines – The Philippines has asked China to explain the increased presence of Chinese vessels near the disputed Scarborough Shoal in the South China Sea (West Philippine Sea), the defense secretary said Sunday, September 4, expressing "grave concern."
Philippine Defense Secretary Delfin Lorenzana said a Philippine Air Force plane saw 4 Chinese Coast Guard ships, two barge-like vessels, and two suspected troop ships near the shoal on Saturday, September 3.
"The presence of so many ships, other than Coast Guard in the area is cause for grave concern," Lorenzana said.
"The DFA (Department of Foreign Affairs) has already called the attention of the Chinese Ambassador and demanded explanation," he added.
The shoal, which is located just 230 kilometers (650 miles) from the main Philippine island of Luzon, has long been a bone of contention between the two countries.
Lorenzana said that earlier this year, the Chinese tried to bring in dredging barges in an apparent attempt to turn the Scarborough into an artificial island but were dissuaded by the United States.
"If they try to construct anything in Scarborough it will have far reaching adverse effect on the security situation," he added.
The Chinese Embassy in Manila could not be reached for comment.
Photo posted by Agriculture Secretary Manny Piu00f1ol on Facebook
Duterte said Friday, September 2, he had received an "unsettling" intelligence report showing China had sent barges to the contested Scarborough Shoal and had appeared to begin construction in the area for the first time. (READ: Duterte: Hague ruling will be my 'platform' for PH-China talks)
A UN-backed tribunal ruled in July that China's claims to almost all of the strategic sea had no legal basis and its construction of artificial islands in disputed waters was illegal. (READ: CHEAT SHEET: What you need to know about PH-China case)
The United States has warned of "actions" if Beijing extends its military expansion to the Scarborough Shoal.
China has sought to assert its claims in the South China Sea by building a network of artificial islands capable of supporting military operations.
Vietnam, Malaysia, Brunei, and Taiwan also have claims to the sea, through which over $5 trillion in annual trade passes.
China took control of Scarborough Shoal in 2012 after a standoff with the Philippine Navy. (READ: Zambales gov to fishermen: Avoid Scarborough Shoal despite ruling)