JAKARTA, Indonesia: Explosive material recovered from the scene of two suicide bombings at hotels in the Indonesian capital is "identical" to that used by the Southeast Asian terrorist network Jemaah Islamiyah in earlier attacks, police said.

Workers of the main police hospital load the body of one of the three Australians killed in the hotel bombings into an ambulance to be transported to other hospital closer to the airport to wait for their return to Australia, in Jakarta, Indonesia, late Sunday, July 19, 2009 in Jakarta, Indonesia. [Agencies]

The culprits in Friday's attacks that killed nine and wounded 50 are believed to have belonged to Jemaah Islamiyah "because there are similarities in the bombs used," Maj. Gen. Nanan Sukarna said.

Anti-terrorism police were hunting for Noordin Mohammad Top, a fugitive Malaysian who heads a particularly violent offshoot of the network and has been linked to four major strikes in Indonesia since 2002.

The twin suicide bombings at the J.W. Marriott and Ritz-Carlton hotels came four years after the last serious terrorist attack in Indonesia and unleashed a new wave of anxiety in the world's largest Muslim-majority country.

Indonesia had been enjoying a period of stability, and President Susilo Bambang Yudhoyono was re-elected to a second term earlier this month, partly on the strength of government efforts to fight terrorism.

"I am shocked by these bombings," Razif Harahap, a 45-year-old graduate student, said in Jakarta on Sunday. "The same people who carried out these attacks could launch another one, because the mastermind is still at large."

The latest attacks killed seven, plus the two attackers, and wounded 50, many of them foreigners.

They were decapitated in the explosions, and confirming their identity could help determine if they had links to Noordin.

The official Antara news agency said Sunday that the government was intensifying efforts to find Noordin and trace the network's finances to try to uncover any links to Friday's blasts.

Officials have identified five of the dead — three Australians, one New Zealander and one Indonesian.

Among the dead was Craig Senger, the first Australian government official to be killed in a terrorist attack, Prime Minister Kevin Rudd said Sunday. Senger worked as a Trade Commission officer at the embassy in Jakarta.