Spain has been hit by a third bombing in 24 hours. The latest blast, in the early hours of this morning, was aimed at a military college in the seaside town of Santona, in Cantabria.
One soldier was killed and six other people were injured. Just hours earlier two explosions in towns in the Basque region injured 10 more people. All bore similar hallmarks. Each incident was a car bombing.
In Ondarroa a vehicle was parked alongside a police station early on Sunday. Molotov cocktails were thrown to draw officers out, then the bomb was set off.
Local officials said the bombers were certainly planning a massacre.
However in the first bombing, in Vitoria, there were no injuries as police had been warned in advance.
Spain has just outlawed two ETA-linked political parties and refused to let Basque leaders canvas public opinion on the future of the region.