a bomb exploded outside a police station in Basauri. December 17: A letter bomb seriously injures a woman at her home in Madrid after her husband had stolen the package from a sorting office. December 20: 12 people are injured after a car bomb explodes near a military barracks in Valencia. December 27: A letter bomb sent to a construction company is defused by police. December 28: A car bomb is defused outside a civil guard headquarters in Durango. 1991 January 1: Police carried out a controlled explosion on a bomb in a post office in Vitoria. January 2: Colonel Luis Garcia Lozano was shot dead in his office in San Sebastian. January 8: In Bilbao a woman and her 11-year-old daughter were injured when a bomb exploded underneath the van they were in. Their family was alleged by ETA to be involved in drug trafficking. January 9: An alleged drug trafficker was seriously injured by a bomb placed under his van. He died 2 days later. January 10: In the third such attack in as many days a man was seriously injured by an under car booby trap bomb in San Sebastian. January 18: A bomb explodes in a block of buildings in San Sebastian. January 22: A small bomb exploded in a bank in Pamplona. January 31: A former civil guard was shot dead in Bilbao February 4: 2 bombs exploded in San Sebastian. February 5: a building inhabited by police officers and their families in San Sebastian was evacuated after a small bomb exploded beside it. February 14: a navy patrol boat was sunk by a bomb in Hondarribia. There were no reported injuries. In another incident a bomb placed in a Telefónica building in San Sebastian was defused. February 15: a car bomb exploded outside of a prison in Malaga. No significant damage was caused and 10 people suffered minor injuries. February 19: a small bomb damaged an excavator working on a highway project in Pamplona. February 21: a bank in Pamplona suffered minor damage from a bomb. March 2: 5 civil guards and a civilian were injured after a large truck bomb exploded outside of a refinery in Somorrostro. March 3: 5 cars were damaged by fire after a bomb exploded at a Renault dealership in San Sebastian. March 4: In Valencia the regional delegate of the construction company Ferrovial was shot dead in his