Images are unavailable offline.

Demonstrators take cover behind a barricade during an anti-coup protest in Mandalay, Myanmar, on March 15, 2021.

STRINGER/Reuters

Myanmar security forces shot dead 12 people taking part in pro-democracy demonstrations on Monday, local media and witnesses said, and the military junta imposed martial law in parts of the main city Yangon, which gave commanders wide powers to stamp out dissent.

Supporters of detained elected leader Aung San Suu Kyi took to the streets again despite the killing of dozens of protesters on Sunday in the bloodiest day since a military coup on Feb. 1 ignited mass demonstrations around the country.

Marches took place on Monday in the second city Mandalay and in the central towns of Myingyan and Aunglan, where police opened fire, witnesses and media reported.

Story continues below advertisement

“One girl got shot in the head and a boy got shot in the face,” an 18-year-old protester in Myingyan told Reuters by telephone. “I’m now hiding.”

The Myanmar Now media outlet reported that 12 people had been killed on Monday across the country, including in Myingyan, Aunglan, and the Yangon district of Hlaingthaya. A journalist in Mandalay said one person was shot dead there after a big protest had passed off peacefully.

The deaths bring the total toll from the protests to about 140, based on a tally by rights group Assistance Association for Political Prisoners (AAPP) and the latest reports.

A junta spokesman did not answer calls requesting comment.

Story continues below advertisement

State broadcaster MRTV reported martial law had been imposed in several districts of Yangon, Myanmar’s commercial hub and former capital, and Myanmar Now said it had also been imposed in several parts of Mandalay.

The martial law announcement stated that military commanders in Yangon would take over administration of districts, including the courts, MRTV said.

The courts martial had the authority to hand down the death sentence or long prison terms for a range of offences. These included treason and dissent, obstructing the military or civil service, spreading untrue information, and crimes related to unlawful association.

Arson attacks on Sunday against 32 Chinese-invested factories in Hlaingthaya, an industrial suburb, prompted China’s strongest comments yet on the turmoil gripping its neighbour, where many people see Beijing as supportive of the coup.

Story continues below advertisement

China’s Global Times newspaper said the factories were “vandalized in vicious attacks” that caused damage worth US$37-million and injuries to two Chinese employees. Its embassy urged Myanmar’s generals to stop the violence.

“We wish that Myanmar’s authorities can take further relevant and effective measures to guarantee the security of the lives and assets of Chinese companies and personnel,” Foreign Ministry spokesman Zhao Lijian said in Beijing.

He did not mention the deaths of the protesters.

The worst of Sunday’s bloodshed took place in Hlaingthaya, where security forces killed at least 42 protesters after the factory attacks, according to a doctor who asked not to be identified.

Story continues below advertisement

At least 16 people were killed in other places, AAPP said, as well as one policeman.

In an apparent bid to suppress news of the turmoil, telecoms service providers were ordered to block all mobile data around the country, two sources with knowledge of the matter said. Telecom Telenor said in a statement “mobile internet was unavailable.”

The army said it took power after its accusations of fraud in a Nov. 8 election won by Ms. Suu Kyi’s National League for Democracy (NLD) were rejected by the electoral commission. It has promised to hold a new election, but has not set a date.

The military has ruled Myanmar for most of the years since independence from Britain in 1948, and had cracked down hard on previous uprisings before agreeing to the latest attempt at a transition to democracy, now derailed.

COURT SESSION POSTPONED

Ms. Suu Kyi, 75, has been detained since the coup and faces various charges, including illegally importing walkie-talkie radios and infringing COVID-19 protocols. Last week, the junta accused her of accepting illegal payments but she has not yet been charged with that.

Story continues below advertisement

She was due to face another virtual court hearing on Monday but her lawyer, Khin Maung Zaw, told Reuters the session could not go ahead because the internet was down. The next hearing will be on March 24, he said.

Khin Maung Zaw also said authorities had informed him the detained Nobel laureate would only be permitted to be represented by two junior lawyers.

Western countries have called for Ms. Suu Kyi’s release and condemned the violence and Asian neighbours have offered to help resolve the crisis, but Myanmar has a long record of rejecting outside intervention.

Anti-China sentiment has risen since the coup, fuelled by Beijing’s muted criticism of the takeover compared with Western condemnation. But protest leader Thinzar Shunlei Yi said Myanmar people did not hate their Chinese neighbours though their rulers had to understand the outrage felt over their stand.

“Chinese government must stop supporting coup council if they actually care about Sino-Myanmar relations and to protect their businesses,” she said on Twitter.

Story continues below advertisement

Japan, which has long competed for influence in Myanmar with China, said it was monitoring the situation and considering how to respond in terms of economic co-operation.

Tom Andrews, the United Nations human rights investigator on Myanmar, appealed for UN member states to cut the supply of cash and weapons to the military.

The International Labour Organization said trade unionists have been arrested and harassed in door-to-door searches while others are in hiding. The International Trade Union Confederation reported widespread restrictions on workers’ rights since the coup.

Our Morning Update and Evening Update newsletters are written by Globe editors, giving you a concise summary of the day’s most important headlines. Sign up today.