Duško Knežević, an estranged ally of Montenegro's ex-President Milo Đukanović, is accused of fraud and money laundering. His lawyer claims the charges are politically motivated.
According to Tuesday's census results, 41.12% of Montenegro's population identifies as Montenegrin, while roughly 33% identifies as Serb, a notable increase.
A fallout between former political allies in Montenegro has complicated the country’s efforts to join the European Union and curb pro-Russian influence.