MANILA, Oct 8 — China’s military and coast guard presence in South China Sea waters claimed by the Philippines nearly doubled last month, Manila said Thursday.

Beijing claims most of the strategic waterway despite an international ruling that its assertion has no legal basis, and confrontations between Philippine and Chinese ships have in some cases led to collisions resulting in injuries and damage.

In September, Manila monitored 101 Chinese navy and coast guard ships around Philippine-garrisoned Thitu Island and Second Thomas Shoal, as well as off Sabina Shoal and Chinese-controlled Scarborough Shoal.

That was nearly double the previous month’s total of 56 vessels, according to a military tally.

The Chinese buildup aims to “break our people’s resolve to keep what is ours”, Rear Admiral Roy Vincent Trinidad, the Philippine military’s South China Sea spokesman, told AFP.

“It’s called mission kill. It seeks to destroy your capability to continue the mission,” he added.

Last weekend, Manila accused China’s military and coast guard of harassing government aircraft and boats in two areas of the South China Sea that lie within the Philippines’ exclusive economic zone.

One incident included alleged interference by a Chinese fighter jet with a Philippine Cessna 208 turboprop that was conducting a “routine military patrol” near Scarborough Shoal on Saturday.

A China Coast Guard ship, meanwhile, “shadowed and blocked” Philippine boats trying to approach a foreign fishing vessel it accused of using dynamite to catch fish, the Philippine coast guard said.

Beijing this week warned Manila against “provocative acts” in the disputed waters, saying the Philippine Cessna near Scarborough was violating its airspace. — AFP