Poland’s opposition Palikot Movement party is to notify prosecutors Monday about a suspected offence by Prime Minister Donald Tusk and deputy Prime Minister Waldemar Pawlak, who it alleges failed to act to stamp out shady practices in the Agriculture Ministry.

The move by party chief Janusz Palikot comes after Agriculture Minister Marek Sawicki resigned in a scandal over alleged irregularities and cronyism by officials linked to the Polish People's Party (PSL), the junior partner in Poland’s coalition government.

Sawicki quit last week after the Polish media published excerpts from a video recording that appeared to show Wladyslaw Lukasik, the former head of Poland's Agricultural Market Agency, describing abuses in companies linked to the Agriculture Ministry.

Palikot told reporters Friday that he would notify prosecutors of Tusk’s and Pawlak’s “failure to inform the right authorities, or their discouraging such authorities from taking action, despite having information about chronic problems in the Agriculture Ministry, the Agricultural Market Agency, and companies answerable to the ministry and the agency.”

President Bronislaw Komorowski is to formally dismiss Sawicki on Thursday. Tusk, who said last week that he had accepted Sawicki’s offer to resign, has not yet named a new agriculture minister.