A stockpile of weapons has been found in a house in the French town of Biarritz during a joint operation by French police and the Spanish Civil Guard.br br Spain’s interior ministry said the weapons were bought four years ago by the Basque separatist group ETA before it called a ceasefire. br br The owner of the house, a French national, has been detained, accused of collaborating with ETA. br br Detienen autoridades de Francia y España a una persona vinculada a la ETA en Biarritz pic.twitter.