Thousands of South Koreans expressed their anger at the government on the first anniversary of the Sewol ferry sinking late on Thursday.
Grief and frustration turned into anger when the relatives, friends and supporters tried to reach Gwanghwamun Square in Seoul to lay flowers on the altars for the 304 victims, most of whom were high school students.
However, police stopped them from marching further by blocking their paths with buses and police walls.
The protesters responded by kicking and throwing objects at the walls.
At a vigil in downtown Seoul, where relatives have protested for months, there were also calls for the recovery of nine of the victims, whose bodies still haven't been retrieved.
There's frustration among South Koreans who see their government as having failed to make meaningful improvements to safety standards and hold high-level officials accountable for a disaster blamed in part on incompetence and corruption.
Earlier in the day, relatives blocked the prime minister from attending a mourning event and cancelled another ceremony because of what they called government indifference to their plight.
Hours before travelling abroad, President Park Geun-hye visited a small port near the site of the sinking to offer condolences to bereaved relatives.
Most, however, refused to meet her to protest the government's response.
Park gave a speech anyway, announcing plans to salvage the ferry - a demand of the relatives.
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