Updated

Another body trapped in a sunken South Korean ferry has been retrieved as the search for missing passengers resumed after a three-day break because of strong winds and waves.

Officials have found 276 bodies, and 28 passengers remain missing. Improved weather allowed the search to resume Tuesday, government task force spokesman Ko Myung-seok said.

Only 172 people survived the April 16 disaster. All 15 surviving crew members involved in the ferry's navigation have been arrested on suspicion of negligence and failing to protect passengers.

An investigation team probing the ferry's sinking formally arrested an employee of a private safety device inspection company on Monday. Prosecutor Yang Jung-jin said the employee is suspected of carrying out poor inspections on the ferry's safety equipment.