1000 GMT: The Belarus Prosecutor General has insisted that former Presidential candidates are not complaining about their conditions in detention.
0925 GMT: Presidential candidate Vitaly Rymashevsky has been released on condition that he not leave Minsk. Yuri Klimovich of Rymashevsky's staff has also been freed after 15 days of jail.
Four other opposition candidates, including Vladimir Neklyaev and Andrei Sannikov (see separate entry for video), are still in prison.
About 150 other detainees are expected to be released after serving 15-day sentences. Around 700 people were seized during protests on Election Day on 19 December.