Hundreds of uniformed school students, many wearing masks, formed human chains in districts across Hong Kong on Monday in support of anti-government protesters after another weekend of clashes in the Chinese-ruled city.<br /><br />Metro stations reopened after some were closed on Sunday amid sometimes violent confrontations, although the mood in the Asian financial hub remained tense.<br /><br />Early on Monday, before school started, rows of students and alumni joined hands chanting "Hong Kong people, add oil", a phrase that has become a rallying cry for the protest movement.
