An 11-month-old baby girl on Tuesday morning became the latest to die following the tremors on Alor island near East Timor, said Alberth Ouwboly of the government relief centre in the island's main town of Kalabahi.

The main quake on Friday measured 6.0 on the Richter scale. However both the girl, and a 15-year-old boy killed Monday night, died as a result of aftershocks, Ouwboly told AFP.

He said the death toll could continue increasing because the aftershocks, though weaker, are continuing. Alor was shaken Tuesday morning by an aftershock measuring 4.6 on the Richter scale, he said.

Emergency officials have not yet been able to reach some remote villages on the rugged island. A relief team left on foot Tuesday for a one or two-day trek to assess the situation in several villages where hundreds of people lived, Ouwboly said.

"When the earthquake hit, the interior villagers fled to the hills. We don't know if any of those refugees died or were injured," he said.

Alor has a population of about 169,000.

Ouwboly said at the weekend the entire population of Northeast Alor district, about 8,000 residents, was believed to have been left homeless by the quake, which destroyed every public and private building there.

Fewer than 500 tents have arrived since Friday's disaster, leaving most victims of the quake sleeping without shelter, he said.

With the rainy season imminent, there are fears of a disease outbreak if emergency shelter does not arrive fast, Ouwboly said Tuesday.

The Indonesian archipelago, located on the Pacific "Rim of Fire" noted for its volcanic and seismic activity, is one of the world's most earthquake-prone regions.

In February at least 28 people died when a succession of powerful earthquakes hit Papua province.

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