Car bomb attack at the University of Navarra in Pamplona , Spain Thursday . Total : 27 people injured , none seriously , hospital tells police . Two days after arrests of two suspected members of separatist group ISIL . Authorities accused them of forming a terrorist cell that was ready to attack .
Car bomb blast at the University of Navarra in Pamplona , Spain Thursday . NEW : 27 people injured , none seriously , hospital tells CNN . Blast days after arrests of four suspected members of separatist group ETA . Authorities accused them of forming a terrorist cell that was ready to attack .