title: Catalan business lobby says worried by any declaration of independence
text: MADRID (Reuters) - The influential Catalan business lobby Cercle d Economia said on Wednesday it was extremely worried by the prospect of Catalonia declaring independence from Spain and called for leaders from both sides to start talks.  Such a declaration would plunge the country into an extraordinarily complex situation with unknown, but very serious consequences,  the lobby said in a statement.  The lobby also condemned violence on Sunday, saying Catalan-Spanish relationships had deteriorated as a consequence, after Spanish riot police were seen beating Catalans attempting to cast a ballot in a vote the government had said was illegal. 