Thousands of people joined demonstrations in the main city of Yangon. In the capital Naypyitaw, hundreds of government workers marched in support of a growing civil disobedience campaign, which was started by health workers.
A doctor said one protester was expected to die from a gunshot wound to the head in Tuesday's protests. She was wounded when police fired guns, mostly in the air, to clear protesters in Naypyitaw. Three other people were being treated for wounds from suspected rubber bullets, doctors said.
The protests are the largest in Myanmar in more than a decade, reviving memories of almost half a century of direct army rule and spasms of bloody uprisings until the military began relinquishing some power in 2011.