The protesters threw bottles, fireworks and fenced the Japanese's company offices.
Reuters say that the pictures show the demonstrators gathered in central Barcelona protesting that Nissan decided to cut 1680 jobs at the factory because of weak demand.
These events coincided with other protests against the closure of a shipyard in northern Spain, in the city of Gijon, where the protesters burned tires on the streets and set off fireworks barricading the streets.
Nissan only built 4x4's in its plant so vehicle sales dropped, because of the petrol crisis, and new environment laws. Volkswagen and Ford have the same problem, so they've decided to lay off workers as well.
According to ACEA car sales in the European Union fell 4.4% in the first nine months of the year, as opposed to a year ago.
Spain's government was hoping to resolve the matter by increasing productivity, but the country carried the burden of these sector wide production cuts because of economic slowdown.
All this has happened while Nissan won 2 grand-prizes for the GTR. We hope that this would open their eyes to make more fuel efficient high performance sports cars.