Spain's Supreme Court has rejected an appeal by former Catalan Deputy First Minister Oriol Junqueras (ERC, Esquerra) and ruled he must remain in prison on remand, the court confirmed on Friday morning.

Three senior judges decided unanimously to keep Mr. Junqueras in jail due to the existence of a "relevant risk" of reoffending.

He has been accused of the crimes of rebellion, sedition and the misuse of public funds due to his role in the process leading to a declaration of independence in Catalonia on October 27.

In the 27-page ruling, the Supreme Court justices reject Mr. Junquera...