13 people have been arrested by the Guardia Civil in Valencia after a violent theft of drugs which they later sold on.A statement from the Civil Guard says that in some of the thefts the accused dressed up as Guardia Civil. The operation started on Feb 7 with the arrest of two women and four men, one of whom is implicated in an attempted murder in Benetússer, Valencia. Three kilos of marihuana has been recovered in the operation and one of the arrests was made inside the Albocàsser jail. It seems part of the stolen drugs were introduced into the prison by family members. Investigations in the case continue.