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Security stepped up in Hong Kong after night of clashes
Police have increased security around Hong Kong and its university campuses as they braced for more violence after sharp clashes overnight with anti-government protesters.
Many subway and rail stations were closed after the protesters blocked commutes and vandalised trains overnight into Wednesday.
A police official said protesters were carrying out "insane acts" and Hong Kong was on the brink of a total breakdown after more than five months of protests.
