Explosion hits Nigeria election office ahead of polls
"There was an explosion and there are several casualties. It was a suspected bomb blast," Yushua Shuaib, spokesman for the National Emergency Management Agency (NEMA), told Reuters.
Africa's most populous nation is due to hold parliamentary elections on Saturday and presidential elections a week later. The run-up to the elections has been marred by isolated acts of violence including an attack on a rally in Suleja last month.
(Reporting by Nick Tattersall)