Tsunami buoy laid in Indian ocean
The first of a planned network of tsunami early warning buoys is being installed in the Indian Ocean.

Indian Ocean warning system
Before the 2004 tsunami, the Indian Ocean did not have a system to warn people that a giant wave was on its way. One year on, what's changed?

Anniversary marked
Ceremonies are held to mark the first anniversary of the devastating Indian Ocean tsunami.

Politics and the tsunami
Paul Reynolds assesses the impact of the tsunami on civil conflicts in Sri Lanka and Indonesia, the two countries hardest hit by the disaster.

Fishermen struggle to cope
The BBC's Sanjoy Majumder finds Sri Lanka's fishing industry still in disarray a year after the tsunami.

Tourists flow into Andamans
A year after it was hit by the tsunami, the Andaman Islands finds favour with tourists again, reports Subir Bhaumik.

Foreigners help Thailand rebuild
More than 3,500 volunteers have helped the tsunami reconstruction effort in Thailand's Khao Lak this year, from more than 50 different countries.

Tsunami aid 'went to the richest'
The poorest tsunami victims have benefited the least from the international relief effort, a survey by Oxfam finds.

Thai resorts await tourists
Six months on from the tsunami, most Thai resorts have been repaired but it is taking longer for the tourists to return.

Doubts over Andaman aid
Ecological concerns are being raised in post-tsunami construction in the Andamans, reports Subir Bhaumik.

Aceh village still battling for water
The Acehnese community of Lampuuk is still reliant on daily deliveries of water, five months after the tsunami.

Sri Lanka's controversial deal
The BBC's Dumeetha Luthra on why it has taken so long for Sri Lanka's tsunami-aid deal to be signed.

Animated guide: The tsunami explained
How a massive earthquake in the Indian Ocean triggered sea surges and the deaths of thousands of people.

At-a-glance: Countries hit
A round-up of the death tolls and state of affairs in countries hit by the earthquake and tsunami on 26 December, 2004.

Tsunami: Anatomy of a disaster
A new BBC One programme, featuring the harrowing stories of survivors, gives a scientific account of the Asian tsunami disaster.

Audio gallery: Tsunami disaster
The human impact of the tsunami disaster in sound and pictures.

Timeline: How events unfolded
A day-by-day account charting how the Asian tsunami disaster unfolded.