The Jakarta Globe reports that there was an incomplete passenger manifest and the total number aboard may not be fully known. There were also over 30 vehicles and trucks aboard, including minibuses.
The Indonesian National Armed Forces units deployed patrol boats to respond to the incident, and several small fishing vessels also assisted. The armed forces and the Ketapang Disaster Mitigation Agency continue to search for survivors.
The ferry was en route from Gilimanuk, Bali, to Banyuwangi, East Java. Officials suggested that a leak was responsible, but investigations are ongoing.
Footage shows the casualty progressing rapidly, as the ferry listed and capsized within minutes.