The head of the World Food Program has begun a four-day visit to Burma to review the agency's humanitarian operations.
Before leaving Thailand for Rangoon, James Morris told the Bangkok Post in an interview published Monday he would raise the issue of restrictions on U.N. aid workers when he meets with Burma's military rulers.
The U.N. envoy said World Food Program workers have been constrained in movement, hampering the delivery of food assistance.
Mr. Morris is expected to meet Prime Minister Soe Win on Thursday and may present a message from U.N. Secretary-General Kofi Annan about a possible visit.
Mr. Annan's special envoy to Burma Razali Ismail and the U.N. human rights envoy for Burma Paulo Sergio Pinheiro have been refused entry to the country for more than a year.
Information for this report is provided by Reuters and AFP.