A lawyer says Spanish prosecutors are asking a judge to jail Catalan Parliament Speaker Carme Forcadell and three other regional lawmakers without bail on provisional rebellion charges.

The four are among a group of six parliament members in Catalonia who were questioned on Thursday in an inquiry about the steps that led to a declaration of independence vote.

The lawyer familiar with the proceedings in Spain Supreme Court says prosecutors also requested bail to be set on another lawmaker and the release of a one who opposed Catalonia’s secession in the Oct. 27 vote.

The lawyer asked not to be named because he wasn’t authorized to discuss the proceedings in public.

Eight members of the now-dismissed Catalan Cabinet and two activists have already been jailed on similar provisional charges. The region’s ousted separatist leader, Carles Puigdemont, and four of his ministers are fighting extradition to Spain from Brussels.