Senior members of Jemaah Islamiyah, the Southeast Asian armed group blamed for the deadly Bali bombings, announced they are disbanding.

A report from the Institute for Policy Analysis of Conflict (IPAC) on Thursday confirmed the authenticity of a June 30 video statement by 16 Jemaah Islamiyah leaders announcing its dissolution.

In the statement, captured on video and shared online, the leaders affirmed their allegiance to the Indonesian state and law, stating that all teachings in affiliated schools would align with orthodox Islam.

Sidney Jones, who authored IPAC's preliminary analysis, mentioned that the men who signed the statement hold enough prestige and credibility within the organization for widespread acceptance of the decision.

The group, affiliated with al-Qaeda, is implicated in some of Indonesia's deadliest attacks, such as the 2002 Bali nightclub bombing that resulted in over 200 casualties.

Indonesia's National Counter Terrorism Agency has refrained from commenting but indicated plans for a forthcoming news conference.

The choice to disband the organization was likely influenced by a variety of factors, including the impact of more peace-driven intellectuals within the group, as well as a cost-benefit evaluation to safeguard their key assets – the schools linked to Jemaah Islamiyah.

In addition, substantial interaction with counterterrorism authorities has been cited as a contributing factor in the decision, according to the report.

Despite the prominence of the individuals involved, IPAC acknowledged the group's history of splinters, suggesting the potential emergence of splinter groups in the future, albeit not immediately.

"For now, it is anticipated that JI-affiliated schools will thrive, and the signatories of the June 30 statement will become increasingly involved in public life," stated IPAC. "The fate of the rest of the membership remains uncertain."