Myanmar's Aung San Suu Kyi attends the joint news conference of the Japan-Mekong Summit Meeting at the Akasaka Palace State Guest House in Tokyo, Japan, 9 October 2018; Credit: Franck Robichon / Pool via Reuters

(Reuters) - A court in military-ruled Myanmar jailed deposed leader Aung San Suu Kyi for four years on Monday 6 December 2021 on charges of incitement and breaching coronavirus restrictions, drawing international outrage of what some critics described as a "sham trial".

President Win Myint was also sentenced to four years in prison, said a source following proceedings who spoke on condition of anonymity, as the court delivered its first verdicts in numerous cases against Ms Suu Kyi and other civilian leaders detained by the military in a coup on 1 February 2021.

Myanmar has been in turmoil since the coup against Ms Suu Kyi's democratically elected government led to widespread protests and raised international concern about the end of tentative political reforms following decades of military rule.

Nobel Peace Prize winner Aung Suu Kyi, 76, has been detained since the coup along with most senior leaders of her National League for Democracy (NLD) party. Others are abroad or in hiding and no party spokesperson was available for comment.

"The conviction of the State Counsellor following a sham trial in secretive proceedings before a military-controlled court is nothing but politically-motivated", UN human rights chief Michelle Bachelet said in comments echoed by the European Union and others.

A military spokesman did not respond to attempts by Reuters to reach him for comment on the sentencing, which was widely reported in domestic media.

The military has not given details of where Ms Suu Kyi has been detained and it was not immediately clear if the sentencing would mean any immediate change in her circumstances.

Dr. Sasa, a spokesperson for Myanmar's shadow civilian government set up following the coup, called on the international community to step up sanctions against Myanmar's military rulers.

Closed Trial

The trial in the capital Naypyitaw has been closed to the media and the junta's public information outlets have not mentioned the proceedings. Aung Suu Kyi's lawyers have been barred from communicating with the media and public.

Ms Suu Kyi faces a dozen cases that include multiple corruption charges plus violations of a state secrets act, a telecoms law and COVID-19 regulations, which carry combined maximum sentences of more than a century in prison.

Ms Suu Kyi and co-defendant Win Myint received jail terms of two years for incitement and the same term for breaches of coronavirus protocols. They had denied the charges.

Western countries have demanded Ms Suu Kyi's release and condemned the violence since the coup in which some 1,300 people have been killed, according to rights groups.

Liz Truss, the foreign minister of former colonial power Britain, condemned Aung Suu Kyi's sentencing as "another appalling attempt by Myanmar’s military regime to stifle opposition and suppress freedom and democracy".

The European Union's top diplomat condemned the verdict as "politically motivated" and called for the immediate release of all political prisoners in Myanmar.

China, which has long had good relations with the military as well as Suu Kyi's government, urged all parties to "bridge their differences", while Japan, a major investor in Myanmar, said the verdict was an "unfavourable development".

Dr. Sasa, a spokesperson for Myanmar's shadow civilian government set up following the coup, called on the international community to step up sanctions against Myanmar's military rulers.

The United States, EU and others issued a flurry of sanctions against senior military leaders and military-linked firms following the coup.

Mark Farmaner, head of pressure group Burma Campaign UK, said Monday's verdict should prompt more action.

"Governments making statements condemning the sentencing of Aung San Suu Kyi should ask themselves, are they doing everything they can to help free political prisoners in Myanmar? I can guarantee the answer is no", he said.

"Most Popular"

Aung Suu Kyi's supporters say the cases against her are baseless and designed to end her political career and tie her up in legal proceedings while the military consolidates power.

Her jailing had been widely expected.

"I don’t expect anything out of this broken justice system", Maw Htun Aung, a deputy minister in the opposition parallel government, told Reuters after the sentencing.

The junta says Ms Suu Kyi is being given due process by an independent court led by a judge appointed by her own administration.

Aung Suu Kyi, the daughter of the hero of Myanmar's independence, spent years under house arrest for her opposition to military rule but was freed in 2010 and led her NLD to a landslide victory in a 2015 election.

Her party won again in November last year but the military said the vote was rigged and seized power weeks later. The election commission dismissed the military's complaint.

Rights group Amnesty International said the charges against Ms Suu Kyi were farcical and her jailing showed the military’s determination to eliminate opposition and suffocate freedoms.

Historian and author Thant Myint U said military leaders thought their predecessors who introduced reforms more than a decade ago had gone too far in allowing Ms Suu Kyi back into politics and the entire reason for the coup was to exclude her.

"She remains far and away the most popular (figure) in Myanmar politics and may still be a potent force in what's to come", he told Reuters.

But Phil Robertson, deputy Asia director for Human Rights Watch, said the more severe criminal charges that Ms Suu Kyi had yet to face would most likely ensure that she "is never allowed to be a free woman again".

(Writing by Martin Petty, Ed Davies and Robert Birsel; Editing by Simon Cameron-Moore and Angus MacSwan)