The 32-year-old gymnastics instructor posted a picture to her Facebook page this week dressed in black combat fatigues and carrying an assault rifle.

“The time has come to fight back,” she wrote on Facebook. “Whether you hold a weapon, pen, keyboard or donate money to the pro-democracy movement, everyone must do their bit for the revolution to succeed.”

Suu Kyi to appear in court for first time on May 24, lawyer says

Tuesday marked 100 days since the coup but the deadly violence did not deter crowds in Yangon taking to the streets demanding a return to democracy.

“I will fight back as much as I can. I am ready and prepared to give up everything. I am even ready to pay with my life,” Htar Htet Htet wrote from an unknown border territory.

Myanmar security forces have arrested 39 people suspected of being behind explosions and arson attacks as well as trying to get military training with an ethnic minority rebel group, media controlled by the junta said on Wednesday.

01:45

Myanmar marks 100 days since military coup with pop-up protests across major cities

Myanmar marks 100 days since military coup with pop-up protests across major cities

The Global New Light of Myanmar newspaper said security forces had seized 48 “handmade mines”, 20 sticks of TNT, detonators, fuses and other material in a raid.

Other explosive material including gunpowder had also been found, the newspaper said.

Some suspects had also been arrested for trying to join military training with a rebel group in Kayah State in the east, it said.

A relative of Khant Sithu, who was among the suspects identified by the newspaper, said on the day of the arrest security forces had searched the house for weapons but not found any.

Myanmar coup: junta designates government in exile as a ‘terrorist’ group

The family member, who declined to be identified, said Khant Sithu had joined protests initially but stopped after the crackdown by authorities.

Myanmar’s army has struggled to impose order since seizing power and detaining elected leader Aung San Suu Kyi and other senior figures in her party, with protests, strikes and a civil disobedience campaign crippling businesses and the bureaucracy.

After facing a brutal crackdown on protests, some pro-democracy supporters have sought military training with some of the ethnic minority forces that have been fighting for greater autonomy for decades from remote border regions.

Rallies and candle lit vigils were held overnight to mark 100 days since the coup including in the commercial hub of Yangon, the central town of Bago, the Irrawaddy river delta, the central region of Sagaing and Mon State in the south, according to media reports and social media posts.

Many demonstrators back a National Unity Government (NUG), an anti-junta coalition that has declared itself Myanmar’s legitimate authority. Last week, the NUG announced the formation of a “People’s Defence Force”.

Security forces have killed 783 people since the coup and 3,859 people are in detention, according to the Association for Political Prisoners monitoring group.

Myanmar swimmer Win Htet Oo to boycott Olympics in junta protest

The UN human rights office said on Tuesday the military was showing no let-up in its efforts to consolidate power and its human rights violations went far beyond killings.

“It is clear that there needs to be greater international involvement to prevent the human rights situation in Myanmar from deteriorating further,” said Rupert Colville, spokesman for the UN High Commissioner for Human Rights.

The military said it had to seize power because its complaints of fraud in a November election won by Suu Kyi’s party were not addressed by an election commission that deemed the vote fair.