The Bulgarian Socialist Party (BSP), the Movement for Rights and Freedoms (MRF) and independent MPs filed on Thursday a no-confidence motion against GERB's centre-right government over what they describe as its "failure in justice and home affairs", BSP said.
The motion was signed by 74 MPs, BSP said in a statement published on its website.
It comes a day after the European Commission released its annual report on Bulgaria's progress in justice and home affairs, urging the country to step up reforms and make them irreversible.
"The new relentlessly critical assessment contained in the European Commission's report on Bulgaria's progress under the Cooperation and Verification Mechanism only confirmed the systemic faults in the government's policy established a year ago. In this sense, the latest European Commission report is also a European assessment of GERB's failure," BSP said.
This is the fourth no-confidence motion against GERB's government which took office in July 2009. It needs 121 votes to pass.