Gonzalo Sanz, chief of staff to the Spanish government's delegate in Ceuta, has resigned amid questions about the government's awareness of intelligence warnings prior to a significant migrant influx. Sanz claims he received a warning from the National Intelligence Centre one day before the mass arrival, contradicting statements from the delegate, Miguel Ángel Pérez Triano. The situation has raised concerns about the government's handling of the crisis and the accuracy of their communications regarding the events leading up to the influx.