National League for Democracy party official Soe Win confirmed some officials were arrested in overnight police operations but the exact number is not known.
Myanmar’s junta lost a tug of war over leadership of its U.N. mission in New York and the United States unveiled new sanctions targeting military conglomerates after the deaths of dozens of civilians protesting against last month’s coup.
But in the main city of Yangon, police fired rubber bullets and stun grenades to disperse protesters who had been joined by about 100 doctors in white coats, witnesses said.
8 Security forces fired warning shots into the air as protesters gathered at one site in the commercial capital Yangon early on Wednesday, according to a journalist at the scene.
Protesters marched in Myanmar on Monday in defiance of a crackdown by security forces that killed at least 18 people a day earlier, as calls grew for a more united international response after the worst violence since a coup one month ago.
Clashes took place in various parts of the country on Sunday and police opened fire on crowds in the biggest city of Yangon, after tear gas and warning shots failed to clear protesters demanding the restoration of Aung San Suu Kyi’s government.
Kyaw Moe Tun had told the UN General Assembly he was speaking on behalf of the ousted civilian government of elected leader Aung San Suu Kyi.
State television, MRTV, said he had "betrayed the country and spoken for an unofficial organization which doesn't represent the country and had abused the power and responsibilities of an ambassador".
Supporters and opponents of Myanmar’s military clashed on the streets of Yangon on Thursday as authorities blocked students from leaving their campus to march, a day after a first flurry of diplomacy aimed at resolving the crisis.
The new military regime has pledged to hold elections in a year, but for now the junta wields power over all the country's political institutions -- including its courts.
Myanmar's military leaders are facing renewed pressure at home and abroad after gradually ratcheting up their use of force against a massive and largely peaceful civil disobedience campaign against their coup.
The United States said it was blocking any US property and suspending the entry into the country of two members of the newly ruling State Administrative Council -- General Maung Maung Kyaw, who commands the air force, and Lieutenant General Moe Myint Tun.
Demonstrators have hoisted her photos high on street marches and unfurled a huge banner of artwork from a bridge in Yangon depicting the moment she was shot.
Opponents of Myanmar’s coup took to the streets again on Saturday with members of ethnic minorities, poets and transport workers among those coming out to demand an end to military rule and the release of Aung San Suu Kyi and others.