Thousands of South Koreans are marching in Seoul for the second straight day to protest government labor policies and handling of a ferry disaster that killed more than 300 people a year ago.

An official from the Korean Confederation of Trade Unions said Saturday that more than 30,000 people are expected at a series of afternoon rallies denouncing policies they fear will reduce wages, job security and retirement benefits for state employees.

Another large rally is expected in the evening when the unionized workers plan to join groups supporting the relatives of the ferry disaster victims.

Dozens were injured last Saturday in a clash between police and demonstrators calling for a new investigation into the government's response to the sinking.