Jakarta, June 26 -- Indonesia's Transportation Minister Dudy Purwagandhi has instructed his staff and related agencies to investigate the perpetrators behind the recent bomb threats targeting flights carrying Indonesian Hajj pilgrims.

"Even if the threats turn out to be hoaxes, I have reminded the Director General of Air Transportation to track them down," Purwagandhi said on Thursday.

He emphasized that even minor negligence in air transportation could have serious consequences for public safety.

If the threats are proven to be hoaxes, the ministry will still conduct a thorough investigation to prevent similar incidents from recurring in the future.

The minister acknowledged that security threats are an inherent risk in the transport...