US diplomatic convoy attacked in Nigeria, four killed.

Gunmen attacked a US diplomatic convoy in Nigeria's Anambra state, killing four people and abducting three others. No US citizens were in the convoy. Separatists who operate in the region have escalated their attacks in recent years, usually targeting police or government buildings. Nigerian officials often blame attacks in the south-east on the outlawed Indigenous People of Biafra movement (IPOB) and its armed wing, the Eastern Security Network.