MANILA - Senator Manny Pacquiao said he will spend personal money to find out who disseminated the "fake news" that he and six others did not sign Senate Resolution 516, which seeks to probe the deaths of youth under the drug war.

"Sabi ko nga, I will spend my money para malaman ko kung sino ang behind that," he said.

"Ang problema kasi nun, yung mga nakabasa na tayo milyun-milyon yan, hindi mo pwede ipaliwanag sa kanila isa-isa. Kumbaga, the damage has been done. Hindi naman ako nagtatanim ng galit pero para respeto lang ang hinihingi namin," he added.

Sen. Cynthia Villar earlier said she has been warned by social media practitioners that the minority bloc has plans to taint the majority's reputation.

“They told me that two senators are out to destroy us. Sen. Risa and Bam daw. But I did not believe that until this thing happen. So I thought, maybe this is the start,” she said.

The Senate said it will ask the committee on public information and committee on public order and dangerous drugs to investigate the report.

Pacquiao also slammed his colleague Sen. Antonio Trillanes IV, who is supposedly using the Senate Blue Ribbon Committee for his "own personal interests."

"Si Gordon naman maganda ang pamamahala niya sa Senate Blue Ribbon Committee, ang akin lang is ang intention kasi ni Trillanes is gamitin yung committee to pin down, gamitin yung committee para sa personal na interest which is hindi pwede iyan. Hindi pupuwede yan," Pacquiao told radio DZMM.

This, after Trillanes vowed to "work hard" in ousting Senate President Aquilino Pimentel III should the majority bloc keep Sen. Richard Gordon as the committee chair.