The UN's top rights body demanded Friday that Myanmar's military restore civilian rule and release Aung San Suu Kyi, echoing the calls of hundreds of thousands thronging cities nationwide in a seventh straight day of protests.

Factfile on the military coup in Myanmar
Factfile on the military coup in Myanmar AFP / John SAEKI

During a rare special session requested by Britain and the European Union, the Human Rights Council adopted a resolution calling for all persons "arbitrarily detained" to be released and the "restoration of the elected government".

"The world is watching," the UN's deputy rights chief Nada al-Nashif at the start of the session.

Hundreds protest from their boats on Myanmar's Inle Lake
Hundreds protest from their boats on Myanmar's Inle Lake AFPTV

Besides Suu Kyi and President Win Myint, more than 350 others have been detained since the February 1 putsch, including activists, journalists, students and monks, al-Nashif said.

In addition, "draconian orders have been issued this week to prevent peaceful assembly and free expression," she said, decrying the "indiscriminate use of lethal or less-than-lethal weapons".

A torrent of anger and defiance has brought tens of thousands of people out in nationwide rallies demanding the country's generals relinquish power
A torrent of anger and defiance has brought tens of thousands of people out in nationwide rallies demanding the country's generals relinquish power AFP / STR

But traditional allies of Myanmar's military, including Russia and China, slammed the emergency session as interference in "Myanmar's internal affairs".

A seventh day of nationwide protests was underway on Friday
A seventh day of nationwide protests was underway on Friday AFP / Sai Aung Main

With teachers, bureaucrats and air traffic controllers among the government employees walking off the job this week to demand an end to junta rule, the new military leader Min Aung Hlaing told striking workers to return to their offices.

The coup has united disparate strands of society in opposition, with some reports of police officers breaking ranks to join demonstrations
The coup has united disparate strands of society in opposition, with some reports of police officers breaking ranks to join demonstrations AFP / STR

But hundreds of thousands still came out Friday in nationwide rallies -- the seventh straight day of protests -- demanding the country's generals to relinquish power.

Demonstrations have so far largely been peaceful, though this week saw police deploy tear gas, water cannon and rubber bullets against protesters.

Massive protests were back underway in Yangon, including a contingent of Premier League fans who put aside their club rivalries to protest the coup
Massive protests were back underway in Yangon, including a contingent of Premier League fans who put aside their club rivalries to protest the coup AFP / STR

Live rounds were fired at a rally in Naypyidaw on Tuesday, critically wounding two people -- including a woman who was shot in the head.

On Friday, in the port city of Mawlamyine, police fired rubber bullets on students while dispersing a sit-down protest.

Suu Kyi has not been seen since she was detained on February 1, the same day a new parliament was supposed to convene
Suu Kyi has not been seen since she was detained on February 1, the same day a new parliament was supposed to convene AFP / Sai Aung Main

Some of the demonstrators were briefly hospitalised, while nine were taken into custody. They were later freed after a crowd mobbed a police station and demanded their release.

Earlier in the day, state media announced the release of more than 23,000 inmates as part of a prison amnesty -- a mass clearing of the country's jails as authorities step up a crackdown on striking workers.

They have called for the junta to respect the results of November's elections, which saw Aung San Suu Kyi's National League for Democracy party win in a landslide
They have called for the junta to respect the results of November's elections, which saw Aung San Suu Kyi's National League for Democracy party win in a landslide AFP / STR

In the Irrawaddy Delta, home to much of Myanmar's rice crop, police stormed a medical clinic and detained a doctor who had been supporting the civil disobedience campaign as he was treating a patient.

"He was in the middle of putting stitches in his patient's head," the wife of Pyae Phyo Naing, 38, told AFP on Friday, a day after footage of the arrest went viral on social media.

The new military regime has weathered a chorus of international condemnation since it took power
The new military regime has weathered a chorus of international condemnation since it took power AFP / STR

"Without giving a reason, they took him," wife Phyu Lae Thu said, crying.

"I want to urge those who are (protesting), please continue... fight until the victory and help him be released."

News of the incident did not deter other medical workers from taking part in another day of massive rallies in commercial hub Yangon.

"Whatever pressure comes from the army chief, we will not pay attention," said Wai Yan Phyo, a doctor.

The coup has united disparate strands of society in opposition, with some reports of police officers breaking ranks to join demonstrations alongside celebrities, students and garment workers.

They have called for the junta to respect the results of November's elections, which saw Suu Kyi's National League for Democracy (NLD) party win in a landslide.

The military justified its takeover with claims of widespread voter fraud, though local and international monitors said there were no major issues that could have changed the poll's outcome.

Min Aung Hlaing's regime has moved quickly to stack courts and political offices with loyalists after bringing the country's decade-old democracy to a sudden end.

The military appears to also be preparing a wider clampdown on internet freedoms -- already, the junta has blocked Myanmar's access to Twitter and Facebook.

A draft cybersecurity bill -- which grants the regime power to order internet blackouts and website bans -- has raised alarm tech giants, civil society groups and even the private sector.

It "violates the basic principles of digital rights, privacy and other human rights," said a letter released late Friday signed by 50 private companies.

In the most significant concrete action, the US announced sanctions this week against the regime's top generals, warning that addition action will be taken if they do not "change course"

Suu Kyi has not been seen since she was detained on February 1.