Sri Lankan military authorities report more than 10,000 people killed. Tamil Tiger rebels report 2,000 dead in the territory they hold in the northeast of the country.
At least 6,200 killed by waves that flooded the southern coast, official media report.
News agencies report more than 4,350 killed, many of them in Aceh in northern Sumatra.
Thai authorities report at least 866 people dead.
46 people are dead and more than 70 missing, according to Hassan Sobir, the Maldives high commissioner.