A small parcel bomb was found in the Greek consulate in Madrid on Monday but failed to explode. Spanish police believe the device was sent by local anarchists in revenge for the arrest of a couple of Spaniards during June’s anti-globalization riots in Thessaloniki. The bomb, which was concealed in a book mailed to the consulate, contained a small quantity of gunpowder and a detonator. Consulate employees treated the parcel as suspicious and called the police, who sent in a bomb squad to remove and safely detonate the device. Nobody claimed responsibility for the attack. Two Spaniards were among the 29 anarchists and anti-globalization activists arrested after the June 21 riots during the EU summit in Halkidiki that caused over a million euros in damage to Thessaloniki shops, banks and cars. The bomb was apparently sent from a Barcelona bookshop.