The Home Secretary, Juan Ignacio Zoido, has used Article 155 powers to sack Catalan Police (Mosso) chief Josep Lluis Trapero.
The decision was published in Spain's official gazette (BOE) in the early hours of Saturday morning.
Major Trapero had been appointed to the post on April 11.
He is currently being investigated by the National High Court in Madrid for the crime of sedition, a public order offence in the Spanish Criminal Code that carries a maximum 15-year term.
The investigating judge, Carmen Lamela, ordered Trapero to hand over his passport, not leave the country and app...