destroyed in Andoain on August 16, several trash containers are burnt in the cities of Azkoitia and Vitoria on August 17, more trash containers are burnt in Vitoria on August 18, eight trash containers and several cars are burnt in the city of Bilbao and petrol bombs are thrown in Amorebieta on August 20. An explosive device went off in Bilbao on August 21. September 16: A small bomb goes off in an industrial zone of Vitoria, causing damage but no injuries. It is believed to be a kale borroka attack, youth groups linked to ETA. December 20: A commando of ETA hides about 7,000 smart cards and plastic supports format card, and seven specialized printers and several printing software in a business located in Bourg-de-Péage in France. 2011 April 9: An officer of the Police Nationale is shot by two members of ETA who refused to stop at a police checkpoint in the town of Valliere, Limousin. Another shoot-out followed the first incident, without injuring anyone. The two members were arrested the following day after another gunbattle. No one was injured. References Basque conflict Basque politics Terrorism in Spain ETA Terrorism-related lists