Sicily's busiest airport stays closed until midnight on Monday, with passengers diverted to Palermo, Trapani and Comiso.Catania's Fontanarossa airport remained closed for a third consecutive day on Monday 28 September because of volcanic ash from Mount Etna, with arrivals and departures suspended until at least midnight.  Airport operator SAC said the closure of the airspace sector was extended because of the ash emissions and the direction of the prevailing winds. It urged passengers to check their flight status with their airline before travelling to the airport. "Following volcanic activity and weather conditions, inbound flight operations at Fontanarossa Airport have been suspended, and temporary limitations on departures are in place until 23:59 PM today, Monday, 28 September", a notice on the official website reads. Travel alternatives Flights were first halted on Saturday morning, and the closure has been extended repeatedly since. Many services have been cancelled or diverted to other Sicilian airports, notably Palermo, Trapani and Comiso. Trenitalia added extra trains between Catania and Palermo on Monday to help stranded travellers reach the island's other main airport.   Catania is Italy's fifth-busiest airport, handling more than 12.3 million passengers a year, but its proximity to the volcano causes recurring problems. In August operations were restricted for more than a week, resuming only intermittently and causing widespread disruption. Calenda stuck in Sicily Among those affected by the flight disruption was Carlo Calenda, leader of the centrist party Azione who told news agency Adnkronos that he had to wait several days for an alternative flight to Turin.   "Sicily is one of the places I love most in the world", Calenda stated, adding: "It must be said, however, that it is neglected to a degree not even seen in a Third World country.” Political criticism The closure has sparked criticism from politicians. Sicilian MP Manlio Messina, of the mixed group in the lower house, called on Italy's civil aviation authority ENAC to act against airlines that fail to assist passengers affected by cancellations, delays and diversions. He described the handling of the emergency as poor and said Sicilian regional president Renato Schifani should resign.