Three probe committees have been formed to investigate the derailment of Rangpur Express in Ullapara of Sirajganj.
The committees were formed by Sirajganj district administration and Western Rail Divisions (Rajshahi and Pakshi) on Thursday afternoon.
Rajshahi Western Rail Division General Manager (GM) Mihir Kranti Ghosh said: "A four member probe committee has been formed, under the leadership of Chief Operating Superintended of Railway Md Shahidul Islam."
Pakshi Divisional Railway Manager (DRM) Md Mizanur Rahman said: "A five member probe committee has been formed, under the leadership of Divisional Traffic Officer (DTO) Md Abdullah Al Mamun.
"The committee has been ordered to submit the report within five working days."
Sirajganj District Commissioner Dr Faruk Ahammad said: "The district administration has formed a separate probe committee to investigate the train accident.
"Additional District Commissioner (General) Md Firoz Mahmud will lead the five member probe committee and submit the report within five working days."
Earlier in the day, eight bogies of Rangpur Express derailed after the train, bound for Rangpur, left the Ullapara rail station. Two bogies caught fire.
Around 20 people were injured in the incident.
