MANILA—The Philippines on Wednesday reported what it said were incursions into its exclusive economic zone (EEZ) by 287 maritime militia vessels from China, in a further sign of cracks reappearing in a relationship after a period of rapprochement. “This incident along with continued illegal incursions of foreign vessels sighted near Philippine-held islands have been submitted to relevant agencies for the possible diplomatic actions,” the task force on the South China Sea said in a statement. The Philippine foreign ministry has repeatedly complained to China in recent weeks about a “swarming and threatening presence” of Chinese vessels in its EEZ and has demanded they be withdrawn. The Philippines has recently boosted its presence in the South China Sea through “sovereignty patrols,” in a show of defiance that critics say has been lacking under its pro-China president, Rodrigo Duterte, who has drawn domestic flak for his refusal to stand up to Beijing. …