The Philippines and China last week announced a “provisional agreement” on Manila’s resupply missions to its contingent of troops on a naval ship grounded on the Second Thomas Shoal, after repeated clashes between vessels that have caused regional concerns about an escalation of hostilities.

The Philippines intentionally immobilised the now rusty former US vessel at the shoal in 1999 in an attempt to claim it as its territory and has since maintained a small rotational troop presence there, infuriating China, which has coast guards stationed in the area.

Saturday’s mission involved a civilian vessel, escorted by Philippine coast guards, with no untoward incidents reported, the foreign ministry said. China’s embassy in Manila did not immediately respond to a request for comment on the mission.

The Philippines and China both said the agreement would not change their positions on the territory.

The shoal is within the Philippines’ 200-nautical mile exclusive economic zone and located 1,300km off mainland China, which is referred to as Renai Reef.

In June, a Philippine navy personnel member lost a finger in an incident that Manila described as “intentional, high-speed ramming” by the China coast guard, which said the replenishment ship ignored repeated warnings to leave.

China claims almost the entire South China Sea as its territory based on historic maps, a claim an arbitral tribunal in 2016 ruled had no basis under international law.