Ojediran said production has been cut off at six pumping stations in the Niger Delta by the protests.
The Ijaw are angry at the distribution of council wards near the town of Warri in Delta State and have vented their frustration on the dominant local industry.
Shell has opened talks with the Delta State government and Ijaw representatives to resolve the situation, Ojediran said.
Company officials said workers have been evacuated from the flowstations to ensure their safety
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