US riot police arrest Oregon protesters

US police forces have arrested several Occupy movement protesters in the state of Oregon as part of the intensifying efforts by the American government to harshly crackdown on anti- corporatism demonstrations. US riot police moved into a downtown Portland park, where Occupy Wall Street protesters were encamped, and arrested several protesters Saturday night, the Associated Press reported. The local police authorities have declined to announce the number of the detainees. The police units also forced other protesters to vacate the location as the standoff between the police and demonstrators got tense. Occupy Portland demonstrators had moved into the park after police dismantled their camps in a downtown site three weeks ago. This is while hundreds of San Francisco University students have joined the movement to protest a planned tuition increase. Meanwhile, security crackdown continues in other cities across the United States. In Philadelphia, protesters say their movement is not over despite being evicted from the City Hall plaza. The US riot police also detained 29 Occupy protesters in Tampa, Florida on trespassing charges after they refused to leave Riverfront Park. Meanwhile, authorities in Los Angeles have also pressed criminal charges against some 20 protesters arrested during Wednesday's raid on the Occupy LA campsite. The Occupy movement emerged in the US after a group of demonstrators gathered in New York's financial district on September 17 to protest the unjust distribution of wealth in the country and the excessive influence of big corporations on US policies. Despite police harassment and mass arrests, the Occupy protests have spread to other major US cities as well as to other countries like Australia, Britain, Germany, Italy, Spain, Ireland, and Portugal.