Belarus freed Nobel Peace Prize laureate Ales Bialiatski, key opposition figure Maria Kolesnikova and dozens of other prisoners on Saturday, capping two days of talks with Washington aimed at improving ties and getting crippling US sanctions lifted on a key Belarusian agricultural export. The US announced earlier Saturday that it was lifting sanctions on Belarus' potash sector. In exchange, President Alexander Lukashenko pardoned 123 prisoners, Belarus' state news agency, Belta, reported.