People wave 'Estaladas' (pro-independence Catalan flags) as they gather during a pro-independence demonstration in Barcelona during the National Day of Catalonia 'Diada'.

People wave 'Estaladas' (pro-independence Catalan flags) as they gather during a pro-independence demonstration in Barcelona during the National Day of Catalonia 'Diada'.

Demonstrators gather during a pro-independence demonstration in Barcelona during the National Day of Catalonia 'Diada'.

People pose with the president of the Catalan regional Government, Carles Puigdemont (C) during a pro-independence demonstration in Barcelona during the National Day of Catalonia 'Diada'.