Ten lions were found dead in a wildlife reserve in Tanzania. Wildlife officials found the dead animals on Friday. Early findings suggest that the lions died after eating poison.
People who protect wildlife have started an investigation. They want to find out what happened and who is responsible. In East Africa, large wild animals often come into conflict with local human communities.
Poisoning is a growing concern for wild animals in the region. For example, 18 elephants died from suspected poisoning in neighboring Kenya earlier this year. Police in Kenya have arrested four people.
Tanzania is home to the largest lion population in Africa. However, wild lions are vulnerable because their natural living areas are shrinking and illegal hunters target them.