A former spokesman of ex-president Rodrigo Duterte has dared China to release any document that would prove its claim that Manila had already agreed to remove the BRP Sierra Madre from a reef that Manila uses to press its stake in the Spratly Islands.

The BRP Sierra Madre — deliberately grounded in 1999 in an effort to check the advance of China in the hotly contested waters — has long been a flashpoint between Manila and Beijing.

Read More–>‘Ipakita nila dokumento’: Panelo dares China to show deal to remove Ayungin vessel