Police are checking a tip that votes are to be bought in the Kardzhali area. The tip has also gone to prosecutors.
Bulgaria elects its seventh president in 10 days. Police are running operations against vote buying in several regions.
In the Kardzhali area, police and gendarmerie have set up 8 checkpoints on the main roads. They are checking people, cars, shops, quick-loan offices and pawn shops.
Chief commissioner Atanas Chotrov, head of security police at the regional Interior Ministry directorate in Haskovo, said the situation is calm for now. Police have seen no movement of people or money that could be used to buy votes or spoil the election.
In the Pleven area there are 20 checkpoints and 195 officers, working across the whole region. Police are also checking car dealerships and all places linked to possible breaches of the Electoral Code.
Chief commissioner Valentin Georgiev, head of security police at the regional Interior Ministry directorate in Pleven, called on people to report any information about vote buying.
So far, police have checked 27 businesses and 3 casinos.