MANILA (AFP) - China's efforts to stake its claim to most of the South China Sea should spark fear around the world, with military conflict possible, Philippine President Benigno Aquino told AFP on Tuesday.
In an exclusive interview, Mr Aquino also warned that China's increasingly assertive actions raised the spectre of other nations having access cut to international shipping lanes and fishing grounds in the sea.
"Does it engender fear? Yes, I think it should engender fear for the rest of the world," Aquino said when asked to assess Chinese government moves in recent years to assert its sovereign claims in the sea.
Mr Aquino said that, while he did not believe China intended to engage in a military conflict over the territorial disputes with the Philippines and other Asian nations, that was a possibility.
"The question of it escalating to something beyond everybody's control should be at the top of the minds of all world leaders," he said.
China claims sovereignty over most of the South China Sea, including areas just off the coasts of other Asian nations, using an assertive demarcation line that first appeared on Chinese maps in the 1940s.
The Philippines, Vietnam, Malaysia, Brunei and Taiwan have overlapping claims. The contested claims have for decades made the sea one of Asia's key flashpoints, and tensions have risen in recent years as China has moved to assert its authority over the areas.
Following a tense standoff between Chinese maritime patrol vessels and the Filipino Navy in 2012, China took control of a rich fishing ground called Scarborough Shoal that is within the Philippines' exclusive economic zone.
Satellite images have also shown China recently embarking on major construction activities to expand Chinese-controlled reefs and islets in the Spratly Islands, one of the biggest archipelagos in the sea.
The images published this month on the website of the Center for Strategic and International Studies showed a flotilla of Chinese vessels dredging sand onto a feature known as Mischief Reef.
Images of other outcrops in the Spratlys showed aircraft runways appearing from jungle, smooth-sided solid masses where there once was coral, and man-made harbours replacing natural reefs.
Mr Aquino said China was building two airstrips on the expanded land formations, which posed defence concerns for the Philippines.
"With these new features, the two airstrips that come to my mind, once operational, puts into effective range the entire country," Mr Aquino said.
"The (Chinese) turnaround time, the sustainability of operations, etcetera, are enhanced by all of these airstrips, and potentially other naval ports."