A new labour law has come into effect in Myanmar, allowing workers to strike for the first time since the 1960s, according to state media.
Officials say the legislation permits workers to form trade unions and strike under certain conditions, the BBC reports.
State media say that the Labour Organisation Law came into effect on Friday, replacing legislation that effectively banned trade unions.
It was signed by President Thein Sein in October last year as part of a series of reforms following decades of military rule.
Opposition supporters and the International Labour Organisation say it is an improvement on the past.
But some labour activists say it will not allow unions to be sufficiently independent.