The European Union and the United States list ETA as a terrorist group . Car bomb blast at the University of Navarra in Pamplona , Pamplona Thursday . NEW : four people injured , none seriously , hospital tells the University of Navarra . Blast days after arrests of 27 suspected members of separatist group the University of Navarra . Authorities accused them of forming a terrorist cell that was ready to attack .
Car bomb blast at the University of Navarra in Pamplona , Pamplona Thursday . NEW : four people injured , none seriously , hospital tells the University of Navarra . Blast days after arrests of 27 suspected members of separatist group the University of Navarra . Authorities accused them of forming a terrorist cell that was ready to attack .