Manila, March 18 -- The ethics complaint involving Senator Ronald "Bato" Dela Rosa may require amendments to Senate rules before it can proceed, Senator Joseph Victor Ejercito said Wednesday.

An ethics complaint was filed against Dela Rosa over his prolonged absence from Senate duties, with an anti-corruption group citing his months-long nonattendance as a possible "dereliction of duty" and raising accountability concerns.

It also prompted calls for an investigation and possible sanctions, including salary suspension, noting that lawmakers are expected to attend sessions and perform their duties as public officials.

Ejercito, chair of the Senate Committee on Ethics, said the issue of "no work, no pay" is not currently covered under exi...