Shipyard workers gather at the Barreras Shipyard in Vigo on July 4, 2013 for a demonstration

Shipyard workers gather at the Barreras Shipyard in Vigo on Thursday for a demonstration. Hundreds of shipyard workers, most in their blue overalls and holding their helmets in their hands, marched Thursday from the shipyard in Vigo to the centre of the city in defence of the sector.