Bali, Indonesia - Three Indonesian Muslim militants on death row for the 2002 Bali bomb attacks may be executed soon, after declining to seek presidential clemency, a prosecutor said Monday.

The head of the Bali's prosecutors office, I Dewa Putu Alit Adnyana, said he had been informed the three Bali bombers - Imam Samudra, Amrozi and Alu Ghufron, alias Mukhlas - had sent a letter to the Denpasar District Court saying "they will not ask for clemency."

Adnyana said after received the letter, he reported the case to the Attorney General's Office in Jakarta a week ago, asking for further guidance.

Samudra, Amrozi and Mukhlas, allegedly members of Jemaah Islamiyah (JI), a regional terrorist network responsible for several bombings across Indonesia in recent years, were sentenced to death by Balis Denpasar District Court in 2003.

The three are now jailed in Nusakambangan island prison, known as Indonesia's Alcatraz, off the southern coast of Central Java.

Indonesia's Supreme Court turned down the three men's final appeal in March 2004, and rejected a similar request for a case review last year.

Last month, lawyers representing the three withdrew their final legal appeal from being heard in Denpasar District Court after their request was turned down to have the bombers brought to Bali to testify or to have the appeal held in Cilacap District Court in Central Java, closer to their island prison.

The last appeal for the three to avoid execution would be for either the defendants or their families seeking clemency from Indonesia's president.

A planned trip to Cilacap district court to ask the three bombers about their stance on clemency had been canceled, Adnyana said.

"This letter is what I have been waiting for," he said, adding that he canceled the trip to Jakarta, but reported about the trio's letter to the attorney general's office.

"The attorney general's office said the letter must be brought to Jakarta," he said, adding that technical preparation for the impending executions were underway.

However, Adnyana said he was still uncertain about whether the executions would be speeded up.

"This is linked with the death penalty, we don't want any administrative mistakes," he said. "We will just wait for the next steps." He added that the latest judicial review also needed to be cleared up before the executions would be carried out.

None of the bombers showed remorse over the attacks against Western tourists on Bali in October 2002, killing more than
150 foreigners, including 88 Australians.

Jemaah Islamiyah is blamed for several simultaneous church bombings across Indonesia on Christmas Eve 2000, bombings on Bali in 2002 and 2005, the bombing of a JW Marriott hotel in Jakarta in 2004 and an attack on the Australian Embassy in 2005. (dpa)