The government has formed two separate committees to investigate the train derailment in Moulvibazar that left at least four people dead and scores injured.
The rescue operation may come to a close on Monday afternoon, according to railway officials.
The first committee led by the chief mechanical engineer Mizanur Rahman has been asked to submit the probe report in the next three workdays.
Besides, a five-member divisional probe committee headed by divisional transport officer Md Mainul Islam has also been formed.
Five coaches of the Dhaka-bound Upaban Express train from Sylhet came off the tracks while it was crossing a bridge in Kulaura, bdnews24 reported citing railways officials and locals.
The rail links between Sylhet and other parts of the country remained suspended following the accident around 11:50pm on Sunday.
Railways Secretary Md Mofazzel Hossain, Additional Secretary Mujibur Rahman and Bangladesh Railway Director General Qazi Md Rafiqul Alam went to the scene at around 9:00am on Monday.
“Rail communications may resume by 5pm,” Additional Secretary Mujibur Rahman said.