Azahari bin Husin, a British educated bomber, is suspected of masterminding the near simulataneous attacks on three crowded restaurants in the Indonesian resort island of Bali killing 30 people, a media report said Sunday.
48-year-old Azahari bin Husin, who completed a doctorate at Reading University in the 1990s before being trained by the Al Qaeda, is known in his native Malaysia as 'Demolition Man', The Sunday Times said.
Azahari learnt his bomb-making craft in one of Osama Bin Laden's Afghan training camps, it said. He is now being hunted by the Indonesian security services for his active involvement in Jemaah Islamiya, the group which is the most feared terrorist network in southeast Asia.
Indonesian President Susilo Bambang Yudhoyono had warned that another attack might be imminent, it said.
The group was behind the 2002 Bali attacks in which car bombers killed 202 people, including 88 Australians, in attacks on nightclubs in the tourist resort of Kuta, the scene of one of Saturday's explosions.
The group has also been blamed for the bombings at the JW Marriott hotel in Jakarta, which killed 12 people in 2003 and a car bomb blast outside the Australian embassy in 2004, which killed 11.
The International Crisis Group, a security think tank, said Azahari and another fugitive, Noordin M Top, could be "tempted" to attack another western target in Indonesia.
Azahari, born in Malaysia, studied in Australia in the 1970s before coming to Britain. He later trained at an Afghan terrorist camp. He and Noordin are wanted for a series of attacks, including the 2002 Bali bombings.