The mayor of Arbeca (Les Garrigues), Sergi Pelegrí, formally submitted his resignation to City Hall on Tuesday, three days after his arrest early Saturday morning for a case of mistreatment and assault against a person in authority. According to municipal sources, Sergi Pelegrí has already registered his resignation at the municipal offices, hours before the regular plenary session, scheduled for 9 p.m. and chaired by the first deputy mayor, Francesc Roset.