Crocodiles have killed at least nine children and attacked several women in Angola's southern Kwanza-Sul province.
The children, aged between ten and 16 years from the Amboim municipality, were killed over the past month as they approached the River Keve to collect water.
Local official Domingos Bento said the attacks have occured ever since a water canal in Amboim was shut down.
This forced local people to go to the crocodile-infested River Keve to collect water.
Crocodiles are ambush predators that spend a lot of time either immobile or gently drifting in river currents.
But the reptiles, which can grow up to 4m long, can show a surprising turn of speed when targeting prey.