Fresh train disruptions by Hong Kong protesters Tuesday show how unrest once confined to weekend marches through downtown streets is spreading across the Asian financial hub and affecting daily life.

Train services were slowed on the centrally located Island Line and the Kwun Tong Line across Victoria Harbour after black-clad protesters blocked doors and requested emergency assistance during the morning rush. There was yelling and confusion as commuters found themselves stuck in large crowds on subway platforms for the second time in less than a week.

Although rail operator MTR Corp. said trains were resuming their normal schedules as of 11:30 a.m., such problems are expected to spread as protesters try to keep their grievances in the headlines and force a response by the city's China-appointed government. The incident follows a weekend of rallies that saw a peaceful sit-in at Asia's busiest international airport and sometimes rowdy mass protests that prompted police to fire tear gas in residential areas.