A car bomb went off near a stadium in Gombe on Monday, a few minutes after President Goodluck Jonathan left the PDP Presidential campaign.
Report says the bomb exploded about 200 metres from the stadium, engulfing the car in flames and killing at least one bystander and wounding seven.
There was no immediate claim of responsibility, although suspicion is likely to fall on Islamist militant group Boko Haram, which has attacked Gombe several times. On Sunday a suicide bombing near a mosque in the market area there killed five people and wounded eight.
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