(AAP) Now is not the time for politics with Burma's people suffering in the wake of cyclone Nargis and the situation too urgent, an international aid worker says.

Sarah Ireland, Oxfam's regional director for East Asia, says agencies have been working with United Nations officials to try to encourage Burmese authorities to "open up a bit".

"Clearly, for those people who are on the ground to try and deliver aid and, of course, for the hundreds of thousands of people who are suffering, they are not really interested in the negotiations. They are interested in action," Ms Ireland said.

"This isn't the time for politics, so we are just trying to concentrate on helping those people."

About 100,000 people are feared to have been killed and at least 1.5 million people left homeless after south Burma was devastated by cyclone Nargis.

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