Over 750 bus drivers from the public transport companies in the city of Plovdiv and the region protest Friday against the high prices of the fuel in Bulgaria.
The buses of all six transport firms operating in the city are travelling with attached Bulgarian flags and posters reading "Protest."
On Thursday, several bus transport companies in Bulgaria declared they raise the ticket prices by 5 to 10 percent due to the record high price of the diesel fuel, which already costs about BGN 2,53 (EUR 1, 28).
Protesters say they are to stage new protests over the diesel price and the expanding "grey sector" in the branch.
According to transport companies, the fuel prices in Bulgaria, which are among the highest in Europe, are to a great extent result of speculation and cartel agreements.