A Rohingya man suspected of involvement in people trafficking has been shot dead in Bangladesh, police said Monday, as the country battles a migrant crisis.

Police said the 30-year-old man died in an early morning gunfight between two groups of human traffickers in Teknaf near Bangladesh's border with Myanmar.

Myanmar police have arrested more than 90 people for human trafficking offences this year, media reported Monday, but no cases have been uncovered in Rakhine state where persecuted Rohingya have fled in droves.

Police gave a breakdown of their anti-trafficking activities with 56 cases recorded between January and May, the Global New Light of Myanmar reported, citing police captain Min Naing.

Thousands living near the Bangladesh-India border celebrated Sunday an historic agreement that will allow them to choose their nationality after decades of stateless limbo.

Poor villagers living in border enclaves waved Bangladeshi flags, held street parades and broke down in tears after Saturday's ratification of the deal covering parts of the border along India's eastern flank.

Unwanted by Bangladesh and unwelcome in Myanmar, hundreds of stick-thin migrants found adrift at sea as a transnational trafficking route collapsed are now living in tents on a frontier scrubland.

After weeks crammed together on a boat bound for Malaysia -- a treacherous journey many braved to flee persecution or poverty -- they are back near to where they began.

Bangladesh and India on Saturday sealed a historic land pact to swap territories, which will finally allow tens of thousands of people living in border enclaves to choose their nationality after decades of stateless limbo.

Foreign secretaries of the two nations signed a protocol and exchanged instruments of ratification to make operational the Land Boundary Agreement (LBA) in the presence of visiting Indian Prime Minister Narendra Modi and Bangladeshi premier Sheikh Hasina.  

Myanmar officials on Thursday said most of the 700 migrants found adrift on a boat in its waters a week ago identified themselves as Bangladeshi, after they were driven to a camp near the border.

The migrants' fate has been the subject of a diplomatic tussle between Myanmar and Bangladesh since they were found in the Bay of Bengal on May 29.

Bangladeshi writer Taslima Nasreen said Wednesday she had left her home in India for the United States after receiving death threats from Islamists behind the recent murders of atheist bloggers in her home country.

Nasreen, who fled to Europe in 1994 after protests against her work by Muslim extremists and who now lives in New Delhi, tweeted that she did not feel safe in the Indian capital.

President Barack Obama has urged Myanmar to end discrimination against its ethnic Rohingya minority if it wants to succeed in its democratic transition from decades of junta rule.

The plight of the Muslim group, 1.3 million of whom live in western Myanmar but are mostly denied citizenship, has come under scrutiny as a migrant crisis unfurls in Southeast Asia.

Myanmar's delegate to talks in Bangkok on Southeast Asia's migrant crisis on Friday rebuked the U.N.'s refugee agency for calling on the country to recognize the Muslim Rohingya minority as citizens to stem their exodus from its shores.

On "this issue of illegal migration of boat people, you cannot single out my country," Myanmar delegate Foreign Ministry Director-General Htin Lynn said in stern response to a UNHCR plea to address the root causes of the ongoing migration crisis including the statelessness issue.

Aung San Suu Kyi was once an unassailable champion of Myanmar's powerless. But the opposition leader's refusal to speak up for a persecuted Muslim minority at the heart of a migrant crisis has cast doubt over her moral force -- and even earned a gentle rebuke from fellow Nobel laureate the Dalai Lama.

Images of hungry migrants from Myanmar and Bangladesh hauled from vessels to Southeast Asian shores after months at sea have spurred calls for immediate humanitarian action to be matched by moves to address the root causes of the crisis.