China reveals Philippine Personnel secretly resupplying BRP Sierra Madre by posing as Fishermen
Personally, I think that these “Secret” Operations are being done by the Naval Special Operations Command (NAVSOCOM) of the Philippine Navy (PN) as this seems to fall under their Area of Responsibility.
Remember that the NAVSOCOM Troops were also the ones that were involved in an Altercation with the Chinese Coast Guard (CCG) earlier this Month.
PH NAVSOCOM trains with the U.S. Navy SEALs: