Manila, June 25 -- Investigators will seek assistance abroad for submersible remote robots to comb the bed of Lake Taal after a whistleblower alleged that the bodies of missing cockfight aficionados were dumped there, the Department of Justice said Wednesday.

Taal Lake spans several towns in Batangas and according to some accounts, is at least 100 feet deep in some portions.

"I have instructed my staff to draft a letter to the Japanese government and to ask for their ROVs, remote operating vehicles, at 'yung mga equipment na kasama nito para ma-map natin ang lake bed ng Taal para makita natin kung anong mga sediments ang pwede natin tingnan at istorbuhin para mahanap natin ang ating hinahanap ((and associated equipment to map the lake b...