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MANILA - Those behind an online video linking senatorial candidate Christopher "Bong" Go to a narcotics ring should lodge charges if the claims were true, a Palace spokesman said Monday.

"That's pure and simple black propaganda. It's so easy to write a story and do a movie or video on that," said Presidential Spokesman Salvador Panelo.

"Kung totoo iyun e di sana nag-file na sila ng charges. Wala naman silang fina-file," he added.

(If that's true, they should have filed charges. They haven't filed anything.)

Go, a former longtime aide of President Rodrigo Duterte, allegedly owns 4 local bank accounts into which drug money is funneled, claimed the video titled "Ang Totoong Narco List - Episode 3."

The accounts are allegedly under the name of a relative of Go who supposedly won government contracts worth millions of pesos in Davao City when Duterte was still mayor.

The information came from a certain "Bikoy", who claims to be a former record keeper of a narcotics ring operating in Southern Luzon and Visayas.

Go, Bikoy claimed, uses the codename "TESOROGOLF-TSG-002" has a dragon tattoo on his back supposedly containing the alphanumeric code of his drug transactions. He noted that Go's full name is Christopher Lawrence "Bong" Tesoro Go.

Bikoy, in 2 earlier videos, also linked the President's son, former Davao City vice mayor Paolo Duterte, to the illegal drug syndicate.

The younger Duterte has rejected the allegation and accused Sen. Antonio Trillanes IV of being behind the video, which the latter denied.

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Asked if Malacañang will urge Go to show his back to disprove the drug allegations, Panelo said: "One who alleges must prove."

"Wala namang naniniwala sa kanila," Panelo said of the video's producers, as he cited Duterte's high approval ratings.

(No one believes them anyway.)

"Like other black propaganda, it is deemed to fail because no false narrative against this family will ever succeed. Truth will always prevail," he added.