The Constitutional Court has opened a case over parts of the changes to the Farmers' Support Act, the court said. A total of 52 MPs from the 52nd National Assembly brought it, and Judge Desislava Atanasova will report on it.

Democratic Bulgaria (DB) said on Friday that it had taken the matter to the court. On 25 September, the party said it was preparing a request to have the changes declared unconstitutional.

Earlier on this story: Democratic Bulgaria asks Constitutional Court to scrap "white spots" money switch

Parliament passed the changes at second reading on 17 September. They also change the Act on the Ownership and Use of Agricultural Land.

DB says some of the provisions concern money from the so-called "white spots". The state collects this money from the use of farmland and owes it to the owners.

"150 million euros have been taken by force from the property of Bulgarian citizens and sent to a newly created fund to support farmers," said DB MP Svilen Trifonov.

He said the party attacked the ruling majority of Progressive Bulgaria sharply in the parliamentary debate, but "not one of our arguments was taken into account".