PRAGUE — Czech prosecutors have asked the lower house of parliament to lift the immunity of former Prime Minister Petr Necas to allow for his criminal prosecution, a spokeswoman for parliament said on Monday.

Necas resigned as prime minister last month after a close aide was charged with bribery and abuse of office, but the former premier remains a member of parliament and is covered by parliamentary immunity.

The spokeswoman did not say what prosecutors intended to charge Necas with. His aide was accused of offering three parliamentary deputies posts in state companies in return for dropping a rebellion against the prime minister last year.

Necas has said the deal was a political agreement common in the central European country and nothing that should be seen as a crime.

The aide was also charged with ordering illegal spying of Necas' wife. Her lawyer said she denied part of the charges and acted in good faith. Necas has said he was not aware of any illegal surveillance.

Necas, a conservative, is being replaced by Jiri Rusnok who expects his full Cabinet to be appointed on Wednesday.