Peter Joemel Advincula, the man claiming to be behind a series of videos tagging the President to the illegal-drugs trade, alleged that the opposition party is the mastermind behind the enterprise. ABS-CBN News/ Screengrab

MANILA—The Department of Justice on Thursday urged Peter Joemel Advincula, the man claiming to be "Bikoy," to participate in its investigation.

In a statement, the DOJ said it earlier asked Advincula to cooperate in its investigation into the "Ang Totoong Narco-list" videos, which linked President Rodrigo Duterte's family to the illegal-drugs trade.

Advincula on Thursday surrendered to police and said his previous allegations were all lies supposedly orchestrated by the Liberal Party and Sen. Antonio Trillanes IV.

The DOJ then reiterated its call for Advincula to cooperate with the government and produce evidence supporting his claims.

Besides tagging the opposition party, Advincula claimed he was promised P500,000 to appear in the videos, but the money did not come through.

The Liberal Party and Trillanes have denied Advincula's allegations, saying they are considering filing charges against him.