Lawyers for seven opposition presidential candidates in Belarus say they have been charged with organising mass disturbances on the day of the election last week.
The candidates were among hundreds of people detained during the protests.
President Alexander Lukashenko won a fourth term in office, but his victory has been widely criticised by the opposition and international observers.
In all, more than 20 people have been identified as suspects in the government's criminal investigation into "mass disturbances" in Minsk on December 19, when tens of thousands protested against Mr Lukashenko's re-election in a central square.
Besides the seven candidates the list includes their campaign managers, trustees and other opposition activists.
If convicted, they could face up to 15 years in prison.