The vessel was believed to have more than 100 passengers on board after leaving from the town of Inongo, northeast of the capital of Kinshasa. It capsized a few hundred meters (yards) into the journey along the Fimi River, the latest such tragedy to strike Congo.
A search was underway for the missing hours later on Tuesday as concerns rose that the death toll could be far higher.
“There was overloading at roof level and, as far as the lifeless human bodies are concerned, at least 25 have been recovered so far,” said David Kalemba, Inongo’s river commissioner.
Tuesday’s wreck was the fourth this year in the Maï-Ndombe province, a region surrounded by rivers and where many rely on river transportation.
Congolese officials have often warned against overloading and vowed to punish those violating safety measures for water transportation. However, in remote areas where most passengers come from, many are unable to afford public transport for the few available roads.
At least 78 people drowned in October when an overloaded boat sank in the country’s east while 80 lost their lives in a similar accident near Kinshasa in June.
The latest accident prompted calls for the government to equip the province with flotation devices.
MNA/