The decision came after prosecutors sought more time for the investigation.
Mohammed Tajul Islam, chief prosecutor of the tribunal, told the judges during Monday's hearing that they were working in line with an extradition treaty signed earlier with India to make Hasina's return possible.
Hasina has been living in exile in India since Aug. 5 when she fled the country amid the student-led protests. The Dhaka-based tribunal on Oct. 17 issued arrest warrants for Hasina and 45 others, including former Cabinet ministers, advisers and military and civil officials. The country is now being run by an interim government headed by Nobel Peace laureate Muhammad Yunus.
At least 13 people, including a former law minister and a businessman who was Hasina’s private-sector adviser, appeared before the tribunal on Monday, said B.M. Sultan Mahmud, a prosecutor at the tribunal. One former Cabinet minister was not brought to the tribunal as he was in custody for police interrogation in a separate case. A further six people will appear on Wednesday, tribunal officials said. At least 20 suspects have been arrested in the case.
The tribunal will also seek updates from police on their progress in arresting the other suspects, including Hasina.
After the hearing on Monday, the tribunal’s head judge ordered authorities to send all 13 suspects to jail, pending investigation.
The chief prosecutor of the tribunal has already sought help from Interpol through the country's police chief to arrest Hasina. On Sunday, Yunus said in an address to the nation that his administration would seek Hasina's extradition from India.
Authorities say hundreds of people were killed during the uprising in July and August, mainly by security agents seeking to quell the initial protests over government jobs. The violence intensified as the protests morphed into an anti-government movement, with more bloodshed, ending Hasina's 15-year rule. Hasina had also earlier sought an investigation into the killings.