MADRID, July 29 (UPI) -- Two road bombings attributed to Spain's Basque separatist group ETA halted traffic Friday along main highways, though no one was hurt.
An anonymous caller phoned in a warning before the blast to the Gara newspaper, which often receives an advanced warning of ETA attacks.
The highways, however, were packed with millions Spaniards heading for vacations, El Mundo reported.
The Basque group is blamed for more than 800 deaths in a more than 30-year campaign to establish an independent country in northern Spain and parts of southwestern France.
In June, ETA announced a partial truce saying it would no longer target politicians.
Prime Minister Jose Luis Rodriguez Zapatero called on the group to renounce its armed struggle altogether. Earlier this year the Spanish Parliament gave the green light for Zapatero's government to negotiate with ETA.
