(Xinhua) -- A car loaded with 100 kg of explosives exploded on Wednesday in Bilbao of northern Spain, causing considerable property damages but no casualties, local media reported. The blast occurred in front of the facilities of Radiotelevision of Basque Country, shortly after an anonymous call in the name of the Basque separatist organization ETA sounded a bomb alert, local police was quoted as saying.
The building affected by the explosion accommodates the offices of daily newspapers El Mundo, Deia, Marca and Expansion, radio station Onda Cero, and TV channel Antena 3.
The Spanish Interior Ministry said that ETA's target was the Basque Radiotelevision, as shown by some ETA documents seized by the ministry earlier in the year.
The bomb was planted on a stolen car, whose owner was found to be tied to a tree near Bilbao.
According to official information, ETA killed 14 people in 17 attacks in 2008.
Spanish Prime Minister Jose Luis Rodriguez Zapatero said on Wednesday that "ETA will lose all the battles," while opposition leader Mariano Rajoy of the Popular Party echoed that "the Spanish society will defeat ETA."