Security forces were on alert Thursday on the prison island of Nusakambangan off southern Java where the Islamist extremists—Amrozi, 47, his brother Mukhlas, 48, and Imam Samudra, 38—are being held.

“All preparations are ready. Security forces have been boosted. The execution can be anytime between November 1 and November 20,” Deputy Attorney-General Abdul Hakim Ritonga told AFP. ...

... The members of the Jemaah Islamiyah regional militant group were sentenced to death in 2003 for the attacks on packed nightspots on the resort island of Bali which killed 202 people, mainly foreign tourists.