The United Nations special envoy to Burma, is in the military-run country to discuss a possible visit by U.N. Secretary-General Ban Ki-moon.
Gambari met Friday with Foreign Minister Nyan Win in the country's administrative capital Naypyidaw. Details of the meeting were not immediately available. The Nigerian envoy arrived in Burma earlier Friday on his eighth trip to the country.
It is not clear whether he will meet with the opposition, including pro-democracy leader Aung San Suu Kyi, who is on trial on charges of violating the terms of her house arrest.
Earlier this week, the U.N. secretary-general said he was looking at the appropriate timing for a visit. He has tried to persuade Burma's ruling generals to free Nobel laureate Aung San Su Kyi and all other political prisoners.
Mr. Ban is scheduled to visit Japan from June 30 to July 2 and could visit Burma afterwards.
Gambari will report to the U.N. leader on his Burmese visit before Mr. Ban leaves for Japan.
Mr. Ban's trip would come at a time when the Aung San Suu Kyi trial is approaching a conclusion. She is accused of breaching her house arrest by allowing an uninvited intruder to stay in her home overnight. American John Jettaw swam to her lakeside home in early May. She says she permitted him to rest overnight after he pleaded exhaustion.
A spokeswoman, Debbie Stothard, for the ASEAN network on Burma, a regional human rights group, urged Gambari to deliver an ultimatum on behalf of the international community to call off the trial and proceed with a democratic dialogue.