jakarta indonesian authorities arrest nine men suspect link militant network loyal islamic state plan series attack police post say police spokesman counter-terrorism police grapple recent resurgence homegrown radicalism world large muslim-majority country inspire extremist group islamic state police say eight men arrest tuesday riau province one man south sulawesi province allege link indonesia high-profile militant network jemaah asharut daulah jad loyal islamic state plan attack police station district level way provincial level national police spokesman rikwanto say men arrest riau add men suspect join train camp neighbor province learn shoot gun assemble bomb detachment 88 country elite counter-terrorism police unit usually step surveillance raid near end year foil militant plot target new year eve christmas celebrations popular tourist spot authorities suspect hundreds islamic state sympathizers indonesia travel syria fight alongside group heighten concern return battle-hardened militants islamic state lose territory middle east four people kill islamic state-linked militants launch gun-and-bomb attack heart capital jakarta january 2016. indonesia arrest nine allege islamic state link