The Negeri Sembilan Council of the Yang di-Pertuan Besar and the Ruling Chiefs (Dewan Keadilan dan Undang or DKU) has accused rival claimant to the throne Tunku Nadzaruddin Tuanku Ja'afar of treason, calling for an investigation and subsequent charge.

It also wants the state's disputed territorial chieftains backing Tunku Nadzaruddin (above) investigated and charged for the same offence.

This marks a direct call for federal intervention by the faction aligned with embattled ruler Tuanku Muhriz Tuanku Munawir, after the rival group made a similar attempt.

Previously, the Attorney-General's Chambers had issued statements affirming Tuanku Muhriz's position and rejecting his removal as Yang di-Pertuan Besar as flawed.