The violence seen in the lead-up to the gubernatorial election could be just the beginning of trouble in the Niger Delta, says guest blogger Alex Thurston.
Group known for bombing oil pipelines has allegedly returned to the Niger Delta, just in time for Saturday's gubernatorial elections in President Goodluck Jonathan's home state.
A spokesman for the Islamist group Boko Haram claimed responsibility for Friday's attacks in the northern Nigeria city of Kano.
Nigeria's government reimposed fuel subsidies after massive protests. But initial decision raises questions about government's moral or political credibility over calls for austerity.