Heavy rain, which turned into snow, fell in many parts of the country, NOVA reported.
The situation was complicated in the Montana and Vidin regions, where there were many stuck cars.
Drivers warned on social networks about heavy snowfall on the "Hemus" Highway in the direction of Varna.
The movement of heavy trucks through the Prevala, Rozhen and Pamporovo passes was limited.
For Wednesday, the forecasts throughout the country are for the rain to turn into snow.
API urged drivers who have a trip coming up in the coming days to set off in cars prepared for winter conditions.