Myanmar's military seized power in a bloodless coup Monday, detaining democratically elected leader Aung San Suu Kyi and imposing a one-year state of emergency -- moves that sparked global outrage and calls for the generals to immediately backtrack.

The army intervention ended a decade of transition from outright military rule in Myanmar, with the generals justifying the power grab by alleging fraud in the November elections that Suu Kyi's National League for Democracy (NLD) party won in a landslide.

Aung San Suu Kyi has been detained, according to her party spokesman
Aung San Suu Kyi has been detained, according to her party spokesman Myanmar's Ministry of Information (MOI) / Handout

US President Joe Biden led the chorus of world condemnation, calling for a quick restoration of democracy and warning that Washington could reimpose sanctions.

"The international community should come together in one voice to press the Burmese military to immediately relinquish the power they have seized," Biden said.

Myanmar President Win Myint has also been detained, according to the National League for Democracy
Myanmar President Win Myint has also been detained, according to the National League for Democracy AFP / Thet AUNG

"The United States is taking note of those who stand with the people of Burma in this difficult hour."

Suu Kyi and President Win Myint were detained in the capital Naypyidaw before dawn, party spokesman Myo Nyunt told AFP, just hours before parliament was meant to reconvene for the first time since the elections.

Late on Monday, Myanmar state television announced the removal of 24 of Suu Kyi's ministers, and 11 new appointments.

Police stand guard along a road in Naypyidaw ahead of the reopening of parliament on February 1 following the November 2020 elections which Aung San Suu Kyi's ruling National League for Democracy won in a landslide
Police stand guard along a road in Naypyidaw ahead of the reopening of parliament on February 1 following the November 2020 elections which Aung San Suu Kyi's ruling National League for Democracy won in a landslide AFP / Thet Aung

Former foreign minister Wunna Maung Lwin, who served under ex-general Thein Sein, will return to that role after five years -- taking over a job that Suu Kyi had held while she was de facto national leader.

The military sealed off roads around the capital with armed troops, trucks and armoured personnel carriers. Military helicopters flew across the city.

Supporters of the military protest in Yangon on January 30 demanding an investigation into what they say was voter fraud in last year's elections
Supporters of the military protest in Yangon on January 30 demanding an investigation into what they say was voter fraud in last year's elections AFP / Sai Aung MAIN

A putsch had been expected for days, yet when it came it left Myanmar stunned -- with roads to its main international airport blocked and communications cut -- a country once more isolated from a world it only rejoined a decade ago.

"It's extremely upsetting -- I don't want the coup," said a 64-year-old Burmese man in Hlaing township, standing with a crowd outside a grocery stall.

Supporters of the National League for Democracy party in Yangon celebrate victory in the November 2020 election
Supporters of the National League for Democracy party in Yangon celebrate victory in the November 2020 election AFP / Sai Aung Main

The United Nations Security Council scheduled an emergency meeting on the situation for Tuesday.

Banners in Yangon celebrate the victory of  Aung San Suu Kyi's ruling National League of Democracy in Myanmar's November 2020 elections
Banners in Yangon celebrate the victory of Aung San Suu Kyi's ruling National League of Democracy in Myanmar's November 2020 elections AFP / Sai Aung MAIN

The military declared, via its own television channel, a one-year state of emergency and announced that former general Myint Swe would be acting president for the next year.

It alleged "huge irregularities" in the November polls that the election commission had failed to address.

AFP / John SAEKI

"As the situation must be resolved according to the law, a state of emergency is declared," the announcement said.

The army later pledged to hold fresh elections after one year.

Myanmar's military seized power and detained democratically elected leader Aung San Suu Kyi
Myanmar's military seized power and detained democratically elected leader Aung San Suu Kyi AFP / STR

Suu Kyi had issued a pre-emptive statement ahead of her detention calling on people "not to accept a coup", according to a post on the official Facebook page of her party's chairperson.

The military moved quickly to stifle dissent, severely restricting the internet and mobile phone communications across the country.

AFPTV / Phyo Hein KYAW

In Yangon, the former capital that remains Myanmar's commercial hub, troops seized the city hall just ahead of the announcement, according to an AFP journalist.

Several trucks were seen in Yangon carrying army supporters, with Myanmar flags and blaring nationalist songs, and some NLD members reported that security forces had ordered them to stay at home.

People rushed to grocery stores to stock up on rice, oil and instant noodles. Banks were temporarily closed by the communications freeze, but some were expected to reopen on Tuesday.

Elsewhere, the chief minister of Karen state and several other regional ministers were also held, party sources told AFP.

Myanmar's November polls were only the second democratic elections the country had seen since it emerged from the 49-year grip of military rule in 2011.

UN Secretary-General Antonio Guterres, the European Union and Australia were among others to condemn the coup. Britain summoned Myanmar's envoy in formal protest.

China declined to criticise anyone, instead calling for all sides to "resolve differences".

The NLD won more than 80 percent of the vote in November -- increasing its support from 2015.

But the military has for weeks complained the polls were riddled with irregularities, and claimed to have uncovered more than 10 million instances of voter fraud.

Myanmar has seen two previous coups since independence from Britain in 1948 -- in 1962 and 1988.

Suu Kyi, 75, is an immensely popular figure in Myanmar for her opposition to the military -- which earned her the Nobel Peace Prize -- having spent the best part of two decades under house arrest during the previous dictatorship.

But her international image was shredded during her time in power as she defended the military-backed crackdown in 2017 against the country's Muslim Rohingya community.

About 750,000 Rohingya were forced to flee into neighbouring Bangladesh during the campaign, which UN investigators said amounted to genocide.

The Norwegian Nobel Committee said Monday it was "appalled" by her arrest.

Suu Kyi was only ever de facto leader of Myanmar as the military had inserted a clause in the constitution that barred her from being president.

But to circumvent that clause, she assumed leadership of the country via a new role of "state counsellor".

The 2008 constitution also ensured the military would remain a significant force in government by retaining control of the interior, border and defence ministries.