The US is offering a $10m reward for information leading to the capture or death of a key suspect in the Bali bombings three years ago.
Most of those killed in the 2002 blasts were foreigners
Officials say the suspect, known as Dulmatin, is an electronics specialist and a senior figure in the Islamic militant group, Jemaah Islamiah (JI).
More than 200 people were killed in the bomb attacks in 2002.
Only al-Qaeda leader Osama Bin Laden and Iraq insurgency leader Abu Musab al-Zarqawi have a higher US bounty.
Both men have a price tag of $25m on their heads.
JI is also suspected of being behind last week's bombing attack in Bali, which killed 22 people, including three suicide bombers.
Dulmatin, a Indonesian also known as Amar Usman, is believed to have set off one of the 2002 bombs with a mobile phone.
He is also suspected of having worked alongside another Malaysian, Azahari Husin, to assemble the massive car bomb, as well as the explosives vest used by a suicide bomber who attacked the nearby Paddy's Bar.
In his mid to late 30s, he believed to be hiding in the Philippines and is thought to have trained at an al-Qaeda camp in Afghanistan.
The US Department of State has also posted a $1m reward for the arrest of a second JI member, identified as Umar Patek, for his suspected help in coordinating the operation on the ground for the 2002 bombings.
"The United States is determined to bring these men to justice for their crimes," state department spokesman Sean McCormack said.