A bomb rips through a nightspot popular with Western tourists, leaving hundreds of people dead or injured. BBC News Interactive provides coverage of the bomb's aftermath and international reaction to the terror attack.
Wednesday 4th December
Mukhlas is linked to other violence in the region
Indonesian police arrest a man they say is operations chief of the Muslim militant group Jemaah Islamiah, which several governments have linked to the Bali bombings. The man, Mukhlas, is the older brother of Amrozi, who was arrested in connection with the blasts last month.
Friday 22nd November
Bali bomb suspect "confessed" to role
The man described as the "mastermind" behind the Bali bombings is said to have confessed his involvement. Imam Samudra reportedly told police he chose the night clubs because they would be packed with tourists.
Thursday 21st November
Indonesian police say the alleged mastermind of the bombings has been arrested.
Imam Samudra was apprehended at a port in West Java. Until now, the authorities only had one suspect in custody, a man known as Amrozi.
Friday 15 November
The people of Bali hold one of their biggest religious ceremonies in decades to cleanse the site of two bomb blasts. The Hindu event was designed to restore spiritual harmony after October's attacks.
Friday 8 November
Up to 10 Indonesians are wanted for questioning, as police release details of a prime suspect's confessions. The man in custody, known only as Amrozi, is said to have admitted co-ordinating the attacks which killed nearly 200 people.
Wednesday 30 October
Indonesian police release sketches of three men they suspect of involvement in the bombing. A police official said they were aged between 20 and 30 years old, and at least two were of ethnic-Indonesian origin.
Tuesday 22 October
A village in Bali holds a symbolic funeral for four victims of the bombing, as the Indonesian government wait to question the detained the radical Muslim cleric Abu Bakar Basyir, who has fallen ill.
Sunday 20 October
Australia observes a day of mourning in memory of the bomb victims. A minutes silence was held at noon across the nation, after which church and town hall bells tolled for a further minute.
Friday 18 October
Australian Prime Minister John Howard visits the site of the bombing. He faces anger from relatives of two Australian victims, who challenge him over the delay in identifying the bodies.
Thursday 17 October
Australia and the UK warn their citizens to leave Indonesia unless their presence is absolutely necessary following intelligence warnings concerning their safety.
Wednesday 16 October
Balinese mourn their own victims while trying to come to terms with the destruction of their livelihoods along with much of the island's tourist industry.
Tuesday 15 October
Two men are arrested in connection with the bombing as Indonesian police reveal the discovery of plastic explosive at the scene, suggesting a sophisticated operation.
Australia struggles with burns victims
The full extent of the burns suffered by many becomes clear as victims arrive in Australia and survivors recount their experiences.
Monday 14 October
Indonesia's defence minister blames the al-Qaeda network for the bomb attack which killed at least 188 people. The American FBI and experts from Australia and Britain have joined the investigation.
Australia's shock and anger at bombing
As Australia comes to terms with the bomb attack, a national day of mourning is declared for those killed or injured in the blast. Prime Minister John Howard tells Australian MPs the fear of attack on the nation is now very real.
Sunday 13 October
A bomb detonates around 2330 local time, destroying the Sari Club that is packed with Saturday night revellers. Many of the victims are foreign tourists. The number of dead continues to rise as rescuers recover bodies from the debris.
Eyewitnesses recall moment of blast
The bomb blast is heard by many holidaymakers in their hotels. Those who go out onto the streets are greeted by horrific scenes. People caught in the blast run from the ruins of the nightclub with their clothes on fire.
Hospitals struggle to cope
The magnitude of the number of people requiring attention leads to confusion in the hospitals. Limited resources hamper efforts to treat victims of the blast. Plans are made to fly people with serious burns to north Australia.
Politicians condemn terror attack
Australian PM: "Huge national tragedy"
John Howard fears many Australians are among those killed. He condemns the attack as "barbaric, wicked and cowardly". He vows to work with Indonesian authorities to track down those responsible for the bombing.
UK PM: "They will strike anywhere"
UK Prime Minister Tony Blair calls on the international community to bear down on those responsible for the Bali bombing. He says the world must "eradicate this evil" before more lives are lost and take "whatever measures" are necessary.