Burma Action Ireland has expressed concern that the true facts about the impact of Sunday's tsunamis on the people of Burma may not have been revealed.
The country's military rulers have said Burma was not badly affected by the tidal waves that killed at least 87,000 people in more than 10 countries.
However, Burma Action Ireland spokesman Hugh Baxter said this may not be true.
"The Burmese government has a track record of under-reporting casualties in natural disasters, so it's difficult to know," he said.
"We would quite frankly hope that in this case the military were actually telling the truth."