The captain of a South Korean ferry that sank last year killing more than 300 people has been jailed for life by an appeal court.

Lee Joon-seok, the captain of the sunken South Korean ferry Sewol, arrives for verdicts at Gwangju High Court in Gwangju, South Korea.

Lee Joon-seok, the captain of the sunken South Korean ferry Sewol, arrives for verdicts at Gwangju High Court in Gwangju, South Korea. Image by (Park Chul-hong/Yonhap via AP)

The sentencing is harsher than a November verdict by a district court that sentenced Lee Joon-seok to 36 years in prison for negligence and abandoning passengers in need.

Victims’ relatives criticised the verdict at the time saying it was too lenient. Prosecutors had earlier demanded the death penalty for Lee.

Lee’s sentence was increased because the Gwangju High Court convicted him on homicide charges, according to court spokesman Jeon Ilho. In the November ruling, Lee was acquitted of homicide.

The appeal court sentenced 14 other navigation crew members to terms of between 18 months and 12 years in prison, Mr Jeon said. In November they had received sentences of five to 30 years in prison.

South Koreans watch a documentary film about the sunken ferry Sewol after relatives canceled a memorial service outside a group memorial altar in Ansan, South Korea.

South Koreans watch a documentary film about the sunken ferry Sewol after relatives canceled a memorial service outside a group memorial altar in Ansan, South Korea. Image by (AP Photo/Lee Jin-man)

Mr Jeon said both prosecutors and the crew members have one week to appeal against the verdicts.

Most of the victims were teenagers travelling to a southern island for a school trip. A total of 295 bodies have been retrieved but nine others are missing.

Many student survivors have said they were repeatedly ordered over a loudspeaker to stay on the sinking ship and that they did not remember there any evacuation orders made by crew members before they helped each other to flee the ship.

Lee has said he issued an evacuation order.

Police officers spray liquid at protesters trying to march after a rally to commemorate the first anniversary of the Sewol ferry sinking in Seoul, South Korea.

Police officers spray liquid at protesters trying to march after a rally to commemorate the first anniversary of the Sewol ferry sinking in Seoul, South Korea. Image by (AP Photo/Lee Jin-man)

A year after the April 2014 sinking, the South Korean government is still reeling from public criticism of its handling of the incident, the country’s deadliest maritime disaster in decades.

There was violence during a Seoul rally led by relatives and their supporters earlier this month, leaving dozens of people injured.

Last week, South Korea formally announced it would salvage the ship from the ocean floor off the country’s south-west coast.

Relatives of the victims hope that might locate the missing, including four students, and help reveal more details about the sinking.

Some experts are sceptical about those wishes and remain opposed to spending taxpayer’s money to lift the civilian vessel.

Officials say the salvage job is estimated to cost £59.7 million to £90 million and take 12 to 18 months.

The authorities blame excessive cargo, improper storage and other negligence for the sinking, and have arrested about 140 people. Critics say higher-level officials have not been accountable.

(Press Association)