ETA a group that claims to only want to target infrastructure and not injure anyone has set off a bomb that injured 31 people. The group normally calls ahead to warn people in advance, but apparently didn't give a good enough warning this time or didn't care. Just a few days ago on January 30, 2005 ETA bombed a Spanish hotel.

ABC

Basque separatists detonated a powerful car bomb in Madrid on Wednesday, a week after Spain's Parliament overwhelmingly rejected a plan to give the region autonomy. Dozens of people were injured.

The explosion came hours after the arrest of at least 10 suspected members of the armed ETA. It was preceded by a telephone warning from a caller claiming to represent the separatist group.

The bomb went off around 9:30 a.m. near the convention center Ifema, shattering thick panes of glass in surrounding buildings and damaging cars parked nearby.

...

The telephone warning was received by the Basque newspaper Gara, which often serves as a mouthpiece for ETA.

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