Local media outlet Mizzima also reported the death in Yangon's Thingangyun township.

Also in Yangon, a woman died of a suspected heart attack after police broke up a teachers' protest with stun grenades, according to Reuters who cited the woman's daughter and a colleague.

In the south of the country, three people were killed and more than a dozen were wounded when police opened fire on protesters in the town of Dawei, according to media outlet the Dawei Watch.

Local politician Kyaw Min Htike confirmed police had shot protesters in Dawei.

Local media outlet Myanmar Now reported two people had been killed in a protest in the second-largest city of Mandalay, according to Reuters.

It was the most casualties in a single day.

Police and the spokesman for the ruling military council did not respond to phone calls seeking comment.

Local media reported that at least five people were injured in those clashes.

On Saturday, state television MRTV announced UN ambassador Kyaw Moe Tun's removal, saying he had "abused the power and responsibilities of a permanent ambassador" and that he "betrays the country."

Speaking to Reuters following his firing, Kyaw Moe Tun said that he "decided to fight back as long as I can."

Addressing the assembly in New York on Friday, Kyaw Moe Tun defied the military rulers now in control of the country and urged the UN Security Council and the world to use "any means necessary" to rescue the people of Myanmar and hold the military to account.