Police clashed with protesters outside the Myanmar embassy in Bangkok, injuring at least two people.
At least 200 people from Thailand and Myanmar gathered today to protest in front of the Myanmar embassy in the Thai capital, Bangkok, to protest the military arrest of State Counselor Aung San Suu Kyi and ruling party officials.
Thai police deploy anti-riot forces to deal with extremist acts.
At least two people were injured, while two were arrested.
The Myanmar army on the morning of 1/2 announced the arrest of State Counselor Suu Kyi, President Win Myint and some senior leaders in the ruling party, and declared a state of emergency to run the country for a year.
Thailand, Cambodia and the Philippines asserted that Suu Kyi's arrest was "Myanmar's internal matter", while the Singapore Foreign Ministry expressed "serious" concerns about the situation.
The US, Australia and the United Nations issued a strong warning message, asking the Myanmar military to release Ms. Suu Kyi and other government officials as well as respect the will of the people and resolve differences through peaceful dialogue.
Suu Kyi's ruling National Coalition for Democracy (NLD) won with 346 out of 412 parliamentary seats.
Army commander Min Aung Hlaing, considered the most powerful in Myanmar, last week warned that the 2008 constitution could be "revoked" under certain circumstances.