On the evening of February 9, the Myanmar army raided the headquarters of Ms. Suu Kyi's NLD in the context of protests against the widespread coup in this country.
"The army raided and destroyed the headquarters of the National Coalition for Democracy (NLD) party around 9:30 p.m.", the party posted on Facebook, but did not provide any further details.
The raid comes amid a coup last week by the military that arrested Myanmar State Counselor Aung San Suu Kyi and other democratic leaders who are angering the public, causing tens of thousands of people to fall.
Police have used tornadoes to suppress protesters in some cities, shoot rubber bullets at protesters in the capital Naypyidaw and tear gas in Mandalay.
The US yesterday repeated its call to maintain freedom of speech for Myanmar, at the same time asking military generals to return power.
"We strongly condemn violence against protesters," State Department spokesman Ned Price said.
The US earlier asked to speak with Suu Kyi but was denied.
The United Nations (UN) also expressed "profound concern" about the violence that day.
"We are looking at all the options," he told lawmakers at the European Parliament.
Myanmar military leaders on February 8 issued an order to enforce martial law in the two largest cities, Yangon and Mandalay, prohibiting people from demonstrating or gathering too many people, and asking people not to go to the street from 8:00 am today.
Many activists announced they would continue to fight.