Myanmar protesters defying a police ban on the blank, fired water cannons and rubber bullets.
At least four people were injured. People from different parts of the country also took to the streets on Tuesday to protest the military coup and demand the restoration of democracy.
A doctor says at least three protesters have been called in for rubber bullets in the capital, Napid.
In a military coup on February 1, the military junta seized power by ousting civilian leader Aung San Suu Kyi.
Suu Kyi, President Win Mint and a large number of other leaders and activists were detained. Protests continue in Myanmar. The largest protests in more than a decade have already taken place. Mass non-cooperation is increasing.
Various officials of hospitals, schools and government offices are being involved in this.