Manila said tests found cyanide in bottles seized near the Second Thomas Shoal, rejecting Beijing’s claim that the evidence was manufactured
4-MIN READ4-MIN ListenRaissa RoblesPublished: 9:16pm, 14 Apr 2026The Philippine military on Tuesday rejected Beijing’s claim that Manila had staged a “cyanide stunt” near a contested reef in the South China Sea, after Filipino officials accused Chinese fishermen of using cyanide around a grounded warship that serves as a military outpost.“We reject any statement that this is fabricated news,” said Navy Rear Admiral Roy Vincent Trinidad, a spokesman for the Armed Forces of the Philippines.At the centre of the dispute is the BRP Sierra Madre, a derelict navy vessel that Manila deliberately grounded on Second Thomas Shoal – known locally as Ayungin – in 1999 to assert its claim to the submerged reef.
A 2016 ruling by an arbitral tribunal in The Hague found the shoal lay within the Philippines’ exclusive economic zone, a decision Beijing has rejected and continues to dismiss. China refers to the feature as Ren’ai Jiao and considers it part of its Nansha Qundao, or Spratly Islands.
Philippine officials say Chinese fishermen working from maritime militia vessels have on at least four occasions since February last year approached the Sierra Madre in small wooden sampans carrying yellow plastic bottles which, according to Manila, contained cyanide released into the water around the outpost.
Beijing says the fishermen were engaged in normal fishing and accuses the Philippine navy of confiscating their belongings.
