A woman who was shot in the head while protesting against Myanmar’s military coup is in a critical condition at a hospital in the capital Nay Pyi Taw.
Mya Thwe Thwe Khaing, 19, was hurt on Tuesday when police tried to disperse protesters using water cannon, rubber bullets and live rounds.
The wound was consistent with one from live ammunition, rights groups say.
There have been reports of serious injuries as police have increased their use of force, but no deaths so far.
Tens of thousands have turned out in street protests against last week’s coup, which overthrew Aung San Suu Kyi’s democratically-elected government, despite a recent ban on large gatherings and a night curfew.
Demonstrations re-started on Wednesday morning, for a fifth consecutive day, with a large group of civil servants gathering in Nay Pyi Taw to protest.
On Tuesday, police used water cannon in Nay Pyi Taw against protesters, who refused to retreat.
Warning shots were reportedly fired into the air before rubber bullets were used. Doctors later said it appeared live ammunition had hit protesters.
According to BBC Burmese, who spoke to an unnamed medical officer from a Nay Pyi Taw hospital, Mya Thwe Thwe Khaing suffered a serious head injury and another demonstrator had chest injuries.
Mya Thwe Thwe Khaing is now in intensive care.
Her sister, Mya Tha Toe Nwe, who was also at the protest, said the chances of her sister surviving are slim.
“It’s heart breaking,” she said. “We only have our mother, our dad is already dead.
“I’m the eldest of four siblings, she’s the youngest. I can’t comfort mum, we have no words.”
According to a report by Human Rights Watch, a doctor from the hospital said the teenager had a “projectile lodged in her head and had lost significant brain function”.
The unidentified doctor said the wound was consistent with the use of live ammunition, and that a metal bullet had penetrated the back of the injured woman’s right ear. A man wounded at the same protest also appeared to have similar injuries.
Earlier, a clip purportedly showing a woman being shot circulated online. The footage shows the woman wearing a motorbike helmet collapsing abruptly.
Separately, pictures on social media showed what appeared to be a blood-stained helmet. The BBC has not verified the authenticity of the images.
The United Nations special rapporteur on Myanmar has warned the country’s security forces that they face prosecution under international law if they use excessive force against demonstrators.
“Myanmar military personnel and police need to know that ‘following orders’ is no defence for committing atrocities and any such defence will fail, regardless of their place in the chain of command,” Thomas Andrews said in a statement issued in Geneva.
He said that “hundreds of arbitrary detentions” had been recorded since the coup.
Previous protests against the country’s decades-long military rule, in 1988 and 2007, saw large numbers of demonstrators killed by the security forces. At least 3,000 protesters died in 1988 and at least 30 people lost their lives in 2007. Thousands were imprisoned during both sets of events.
Late on Tuesday, Myanmar’s military also raided Ms Suu Kyi’s National League for Democracy (NLD) party headquarters in the country’s largest city, Yangon, the party said.
BBC Burmese understands that security forces broke down the doors by force. No party members were present in the building at the time. Footage of the headquarters filmed by the AFP news agency showed damaged computer servers and ransacked cupboards.
The raid took place during a nationwide night curfew, which lasts from 20:00 to 04:00 (13:30 to 21:30 GMT).