International aid efforts are underway in Asia, after an earthquake and huge tidal waves in the Indian Ocean killed at least 23,200 people.
At least nine countries have been affected, with Sri Lanka, Indonesia, India and Thailand among the worst hit.
Mass graves are being dug amid fears that disease could spread through the disaster zone.
More than a million people are homeless.
Scientists have revised the estimates of the strength of the original earthquake off Sumatra to 9.0 on the Richter scale, making it the strongest in 40 years.
Aftershocks today have been recorded at between 5.5 and 6.0 on the scale.
The scientists say the principal tidal wave yesterday reached a height of 10 metres.
More waves were expected to be generated by the aftershocks.
Tragedy claims over 23,200 lives
The death toll now includes at least 38 Somali fishermen, missing on the far side of the ocean since before the quake that caused the waves.
The dead included 7,110 in southern India, among them some 3,000 in the Andaman and Nicobar Islands, close to the epicentre of the quake, and almost 3,000 in Tamil Nadu.
10,200 people, including up to 200 foreigners, were killed and many more were reported missing in Sri Lanka.
In Indonesia, 4,912 people were killed as the country
took the full force of the huge earthquake and tidal waves that
swallowed entire coastal villages.
866 people were killed and more than 7,000 injured in
southern Thailand, including foreign tourists at famous seaside
resorts.
In Malaysia, 52 people, including many elderly and children,
were killed and 218 were hurt, while 52 people died in the low-lying Maldives. The disaster also claimed the lives of 34 people in Myanmar, formerly Burma, and two in Bangladesh.
