Anguished families, fearful they might be left without even their loved ones' bodies, vented rage Sunday over the government's handling of the crisis.
About 100 relatives attempted a long protest march to the presidential Blue House in Seoul, about 400 kilometers (250 miles) to the north, saying they wanted to voice their complaints to President Park Geun-hye. They walked for about six hours before police officers in neon jackets blocked a main road.
"The government is the killer," they shouted as they pushed against a police barricade.
"We want an answer from the person in charge about why orders are not going through and nothing is being done," said Lee Woon-geun, father of 17-year-old missing passenger Lee Jung-in. "They are clearly lying and kicking the responsibility to others."
Earlier Sunday, relatives of the missing blocked the car of Prime Minister Chung Hong-won and demanded a meeting with Park as Chung made a visit to Jindo. Chung later returned to the gymnasium, but met only with a number of representatives of the family members in a side office.
On Sunday evening, dozens of relatives who gathered at the port in Jindo surrounded the fisheries minister, Lee Ju-young. They shouted, swore, yelled threats and pushed him as he was on his way to a meeting with other officials.
Relatives are desperate to retrieve bodies before they decompose beyond recognition, Lee Woon-geun said.
"After four or five days, the body starts to decay. When it's decayed, if you try to hold a hand, it might fall off," he said. "I miss my son. I'm really afraid I might not get to find his body."
The Sewol's captain, Lee Joon-seok, 68, was arrested Saturday, along with one of the ship's three helmsmen and the 25-year-old third mate. The third mate was steering at the time of the accident, in a challenging area where she had not steered before, and the captain said he was not on the bridge at the time.