Indonesian police are studying DNA evidence to identify two suicide bombers who carried out twin attacks on luxury Jakarta hotels on Friday, as security is tightened across the country.
One explosion hit the Ritz-Carlton Hotel, ripping off its facade, and the other the JW Marriott Hotel at about 7.30am local time on Friday.
Nine people were killed, including one New Zealander and three Australians, and more than 50 people were wounded. The dead include two suspected suicide bombers.
A memorial service was held in Jakarta on Saturday for New Zealander Timothy Mackay, who headed the cement company Holcim Indonesia. Fellow workers say he was highly regarded in the country.
It has been confirmed that tthree Australians were killed in the bombings.
Australia's Foreign Minister, Stephen Smith, is leading a delegation of experts to Jakarta to provide support to Indonesia.
He says there is a serious need to re-examine safety procedures.
New Zealand says it already had clear security warnings in place for Indonesia, with terrorist attacks possible at any time, anywhere in the country.
The Ministry of Foreign Affairs advises against all tourist and other non-essential travel due to what it calls the continuing high threat from terrorism.
It says it is not aware of any other New Zealand casualties of the bombings.
Staff at the New Zealand Embassy visited Jakarta's main hospitals twice on Friday night to ensure no-one else was injured.
The ministry says 281 New Zealanders are currently registered as being in Jakarta; 149 are confirmed to be safe and well. It's continuing to try and contact others who may be in the area.
Police say the casualties also include citizens of Indonesia, the United States, Australia, South Korea, the Netherlands, Italy, Britain, Canada, Norway, Japan and India.
Hotel security questioned
Australia's Foreign Minister Stephen Smith says there was no warning or intelligence to suggest an attack was to take place and both hotels were considered safe places.
The attacks, with homemade bombs, were on the basement car park of the Marriott and a restaurant in the Ritz-Carlton, police say.
They say the bombers checked into the Marriott as paying guests on Wednesday and assembled the bombs in their room, number 1808.
A third unexploded bomb was later found in a laptop computer bag on the 18th floor. It has been linked to materials associated with the fugitive former Jemaah Islamiah terrorist Noordin Mohammad Top, which were found in the house of one of his relatives a few days ago.
TVOne in Indonesia showed closed-circuit television footage of a suspect at the Ritz-Carlton Hotel. He was wearing a baseball cap and pulling a wheelie-bag through the lobby.
Experts say the attacks would have required months of careful planning, raising questions about hotel security and whether a prevention was possible.
A senior police source has told an Indonesian newspaper that metal detectors went off when the bombers entered one of the hotels, but the men were let through anyway.
But the Marriott's head of security, Alan Orlob, has defended hotel security.
"Every vehicle that comes up to the hotel is inspected. All luggage is inspected with sophisticated explosive detectors," he said. "We have walk through metal detectors at the hotel. Nobody can go into the hotel without being screened with a metal detector - It's like going into an airport."
Perpetrators unknown
No group has yet claimed responsibility for the blasts, which come just weeks after peaceful presidential elections in Indonesia.
The re-elected President, Susilo Bambang Yudhoyono, has condemned "the cruel and inhuman attack".
He says the bombings were carried out by a suspected terrorist group, though it was "too early to say" if Jemaah Islamiah was involved.
He said: "Those who carried out this attack and those who planned it will be arrested and tried according to the law.
"This act of terrorism... will have wide effects on our economy, trade, tourism and image in the eyes of the world."
The country of 240 million people has been praised in recent years for maintaining a pluralist democracy while finding and punishing radical Islamists responsible for a series of bombings earlier this century.
A combination of new laws, anti-terror training, international cooperation and reintegration measures had kept Indonesia peaceful, analysts say.
Attacks first in four years
The Jakarta Marriott hotel was previously bombed on 5 August, 2003. Eleven people were killed.
The Australian Embassy in Jakarta was bombed on 8 September, 2004: 11 Indonesians were killed and 180 people were wounded.
Jemaah Islamiah (JI) organised the Bali bombings on 12 October, 2002, in which 202 people were killed, including 88 Australians and three New Zealanders.
Three "Bali bombers" were executed by firing squad in November 2008.
In the second Bali bombings, 23 people were killed in restaurants on the island on 1 October, 2005. The dead included four Australians and three suicide bombers.
