Police in Myanmar escalated their crackdown on demonstrators against this month’s military takeover, deploying early and in force on Saturday as protesters sought to assemble in the country's two biggest cities and elsewhere. Security forces in some areas appeared to become more aggressive in using force and making arrests, utilizing more plainclothes officers than had previously revealed themselves. Photos posted on social media showed that residents of at least two cities, Yangon and Monywa, resisted by erecting makeshift street barricades to try to hinder the advance of the police. Myanmar’s crisis took a dramatic turn on the international stage at a special session of the United Nations General Assembly on Friday when the country’s U.N. ambassador declared his loyalty to the ousted civilian government of Aung San Suu Kyi and called on the world to pressure the military to cede power. There were arrests Saturday in Myanmar's two biggest cities, Yangon and Mandalay, where demonstrators have been hitting the streets daily to peacefully demand the restoration of the government of Suu Kyi, whose National League for Democracy party won a landslide election victory in November. Police have increasingly been enforcing an order by the junta banning gatherings of five or more people. Many other cities and towns have also hosted large protests against the Feb. 1 coup. Police in Dawei, in the southeast, and Monywa, 135 kilometers (85 miles) northwest of Mandalay, used force against protesters. Both cities, with populations of less then 200,000 each, have been seeing large demonstrations. Social media carried unconfirmed reports of a protester shot dead in Monywa. The reports could not immediately be independently confirmed but appeared credible, with both photos and identification of the victim. The reports from Monywa also said dozens or more people were arrested. The military takeover reversed years of slow progress toward democracy after five decades of military rule. Suu Kyi’s party would have been installed for a second five-year term in office, but the army blocked Parliament from convening and detained her and President Win Myint, as well as other top members of her government. At the General Assembly in New York, Myanmar’s U.N. ambassador, Kyaw Moe Tun, declared in an emotional speech to fellow delegates that he represented Suu Kyi’s “civilian government elected by the people” and supported the fight against military rule. He urged all countries to issue public statements strongly condemning the coup, and to refuse to recognize the military regime. He also called for stronger international measures to stop violence by security forces against peaceful demonstrators. He drew loud applause from many diplomats in the 193-nation global body, as well as effusive praise from other Burmese on social media, who described him as a hero. The ambassador flashed a three-finger salute that has been adopted by the civil disobedience movement at the end of his speech in which he addressed people back home in Burmese. In Yangon on Saturday morning, police began arrests early at the Hledan Center intersection, which has become the gathering point for protesters who then fan out to other parts of the city. Police took similar action in residential neighborhoods. Security forces also tried to thwart protests in Mandalay, where roadblocks were set up at several key intersections and the regular venues for rallies were flooded with police. Buddhist monks were prominent in Saturday's march in Mandalay, as they have been regularly, lending moral authority to the civil disobedience movement that is challenging the military rulers. Subscribe to our YouTube channel: https://bit.ly/2TwO8Gm Bloomberg Quicktake brings you live global news and original shows spanning business, technology, politics and culture. Make sense of the stories changing your business and your world. To watch complete coverage on Bloomberg Quicktake 24/7, visit http://www.bloomberg.com/qt/live, or watch on Apple TV, Roku, Samsung Smart TV, Fire TV and Android TV on the Bloomberg app. Have a story to tell? Fill out this survey for a chance to have it featured on Bloomberg Quicktake: https://cor.us/surveys/27AF30 Connect with us on… YouTube: https://www.youtube.com/user/Bloomberg Breaking News on YouTube: https://www.youtube.com/c/BloombergQuickTakeNews Twitter: https://twitter.com/quicktake Facebook: https://www.facebook.com/quicktake Instagram: https://www.instagram.com/quicktake