We start our world news with the latest on the unrest in Hong Kong.<br />The authorities there are in a tense stand off with pro-democracy protesters who have barricaded themselves inside a university in the city.<br />For more on this and other news around the world, let's turn to our Kim Da-mi.<br />Da-mi, tell us more about yet another chaotic weekend in Hong Kong.<br />Connyoung, Hong Kong is becoming more and more like a battlefield day by day...and that was especially the case over the weekend at Hong Kong Polytechnic University.<br />The school is the last of five universities to be occupied by protesters, and in a bid to get them out, Hong Kong police pulled out a controversial anti-riot sound device known as Long Range Acoustic Device(LRAD).<br />A low-frequency, noisy "woo-woo" sound sent warnings to protesters, but riot police rejected protesters' claim that it's a weapon that can cause harm.<br />While police fired tear gas and water cannons, protesters set a police vehicle on fire and shot arrows from the barricaded university.<br />One arrow became lodged in one officer's leg.<br />Meanwhile, Chinese soldiers stationed in Hong Kong have been spotted cleaning up Hong Kong's streets.<br />The presence of the mainland's People's Liberation Army has prompted concerns that Beijing may exert its force on Hong Kong sooner rather than later.<br />In fact, according to China's Ming Pao Newspaper, senior Chinese officials including Vice Premier Han Zheng took a visit to Guangdong Province an area close to Hong Kong and discussed the current crisis in Hong Kong.<br />As tensions are only escalating in the city, all schools in Hong Kong will be closed on Monday.<br />
