jakarta indonesian counter-terrorism police kill two militants suspect link pro-islamic state network shootout eastern island sumbawa officials say tuesday authorities country world large muslim population try stamp spread radical islamist ideologies elite counter-terrorism unit detachment 88 densus 88 notch string recent successes jemaah ansharut daulah jad network loose organization radicals loyal islamic state two militants kill sumbawa suspect members jad police say shootout occur counter-terrorism force run group four militants conduct surveillance operation mountainous area near city bima two militants manage escape several weapons different caliber bullets survival gear say national police spokesman setyo wasisto militants travel bima poso sulawesi island counter-terrorism operations decimate militant group sulawesi police say sign militants turn attention bima strong link radical group poso bima people go back forth people receive order carry action bima wasisto say last week police say eight men arrest riau province central eastern coast sumatra one man south sulawesi province suspect link jad indonesian police kill two 'terrorists eastern island