Portuguese police have seized half a tonne of explosives at a house that they say was being used as a base by Basque separatist group Eta. The discovery, which also included bomb-making equipment, was made in the central Portugal town of Obidos. Fake licence plates, detonators and maps were also found, officials said. A militant group fighting for an independent Basque homeland, Eta has been blamed for more than 820 deaths during its campaign in Spain. "The material was stored in secure conditions which indicates the work of professionals," local police chief Helder Barros said. Several of the explosives were...