Opposition leader Aung San Suu Kyi raised fears for crucial November elections Tuesday as Myanmar sought to calm political tensions following the surprise ouster of the head of the ruling party.

The dramatic removal of Shwe Mann as head of the Union Solidarity and Development Party (USDP) last week was seen as a decisive swoop by the president and his military allies to tighten their political hold ahead of the polls.

The ousted leader of Myanmar's ruling party has no choice but to abide by the decision to remove him, his son said on Friday, after the unexpected putsch ahead of November elections.

Shwe Mann was removed as head of the ruling Union Solidarity and Development Party (USDP) on Thursday after a night of high political drama, which saw security forces enter the party base in the capital Naypyidaw.

The leader of Myanmar's ruling party has been removed from his post, an official said Thursday, after a shock police swoop on party headquarters that laid bare a power struggle among the country's key political players ahead of elections.

The ruling Union Solidarity and Development Party (USDP) has been gripped by in-fighting in the run up to the November polls -- billed as the freest and fairest for decades in the former-junta ruled nation.

Every night Aung Myo Tun climbs onto the raised platform where he sleeps with his wife, six children and mother-in-law, listening in growing panic to the sound of water lapping around his house in Myanmar's Irrawaddy delta.

"We are in trouble," said the farmer, his face etched with tiredness from two weeks of guarding his family from the swirling river that has swallowed his village, as the country battles its worst flooding in years.

Bangladesh is to hold a census of hundreds of thousands of undocumented Rohingya who have crossed into the country seeking refuge from persecution in neighboring Myanmar.

Foreign Secretary Shahidul Haque said the government had earmarked $2.7 million for the census to be carried out in Bangladesh's southeast, near the border with Myanmar's Rakhine state.

Myanmar has returned 159 Bangladeshi migrants rescued from boats stranded off its coast in May, officials said Tuesday, the latest group to be repatriated after a migration crisis that unfurled across Southeast Asia.

More than 800 men, women and children were picked up from ships abandoned by smugglers in the Bay of Bengal in recent months, after a Thai crackdown on people-smuggling led gang bosses to abandon their human cargo on land and at sea.    

The death toll from severe flooding across Myanmar has topped 100, state media reported Monday, with nearly one million people affected as fears intensify for the country's crucial rice bowl region.

Floods from a heavy monsoon season have cut through swathes of South and Southeast Asia in recent weeks, claiming hundreds of lives and displacing millions.

The Chemical Weapons Convention, which bans the production, storage and use of chemical arms, has gone into force in Myanmar, an international watchdog said Friday.

The southeast Asian country has previously faced accusations of storing and using such weapons.

Talks aimed at reaching a historic Myanmar peace agreement between the government, army and ethnic armed groups ended without resolution Friday as negotiations stumbled on whether a deal should include all rebel groups.

With time running out to reach a ceasefire ahead of crucial November 8 elections in the former junta-run nation, negotiators said they were unable to seal an agreement.

The death toll from severe flooding across Myanmar has risen to 88, officials said on Friday, as rising waters swallowed more homes in low-lying regions in some of the poorest parts of the country.

More than 330,000 people have been affected by torrential monsoon rains that triggered flash floods and landslides, cutting off communications as the deluge engulfed roads and destroyed bridges.