Eighteen children were among more than 70 people killed when an overloaded ferry capsized on Lake Kariba in Zimbabwe this week, police said Saturday after rescuers recovered more bodies.

The ferry capsized in strong waves on Tuesday. Police said that 26 more bodies had been recovered since then, bringing the death toll to 72.

The aging ferry was traveling from the town of Kariba to rural and fishing communities in the country’s northwest, where roads are damaged and public transportation is scarce. Authorities have not said how many people were aboard or how many remain missing.