Bangladeshi President Iajuddin Ahmed has pardoned three university professors hours after a court sentenced them to two years imprisonment for inciting student unrest.
Officials say a fourth teacher was cleared of charges related to the case.
The teachers from Dhaka University were found guilty earlier on Tuesday of violating the country's emergency laws in connection with violent anti-government protests last August.
The protests prompted several days of nationwide curfews.
On Monday, a separate court acquitted the same four teachers of similar charges.
The violence was sparked by an alleged assault on students by troops during a football match at the Dhaka University campus.
Amir Khasru has more details.