Divers in Indonesia have recovered a total of 52 bodies in a dayslong operation following the capsizing of a ferry in rough seas earlier this month, officials said Friday.

Authorities have rescued 108 people, while 83 others remain missing.

The Virgo Transport 8 ferry was traveling from Surabaya in East Java to Banjarmasin in South Kalimantan on Borneo island with 243 people aboard when it issued a distress call on Sept. 13, reporting that the vessel was listing in rough seas, with waves reaching 3 meters (10 feet).

Authorities later learned that the ferry had capsized in the waters of the Masalembo archipelago in the Java Sea.

During the search operation, divers recovered passengers’ bodies after breaking through the ferry’s windows underwater to enter the vessel. Indonesia’s Search and Rescue Agency said all available resources were being deployed in the search.

“Our primary focus is to locate the missing victims and provide closure to their families,” said Mohammad Syafii, head of Indonesia’s National Search and Rescue Agency.

The agency is still planning to salvage the ferry and pull the wreckage from a depth of about 30 meters (98 feet).

The recovered bodies were taken to a police hospital in the Borneo city of Banjarmasin for identification before being handed over to their families.

Indonesia is an archipelago of more than 17,000 islands, where ferries are a common mode of transportation. Ferry disasters occur regularly, with weak safety enforcement often blamed.