Officials in Nigeria say the deadly H5N1 strain of bird flu has spread to another state, bringing the total number of states now affected by the virus to 14.
Health authorities say the strain has appeared in northeastern Taraba state. The new outbreak means the virus is now present in more than one third of Nigerian states.
Nigeria was the first African country to be hit by bird flu. Several other West African countries are also grappling with outbreaks of the disease, including Nigeria's neighbors, Niger and Cameroon.
No human cases have been detected in the region, although the disease is believed to have killed more than 120 people around the world since 2003.
Some information for this report was provided by AP and Reuters.