A car rally has taken place downtown Sofia and on one of the main boulevards of the city, protesting against high fuel prices. For a month, international market prices have been falling, while in Bulgaria prices have been rising. We have informed the Prime Minister that we consider this is an absolute speculation. We want the state to get in its role and protect the market principle in forming the prices. We pay much more than we should pay, said Krassimir Mitov of National Trade Union Protection. A month and a half ago, at almost the same price of crude oil and dollar exchange rate, the price of fuel was about one euro, and today it is nearly 15 cents higher, protesters say. Some of them congratulated Prime Minister Boyko Borissov on his birthday and brought a cake as well as gasoline spilled from a container.