The European Union, increasingly anxious to reduce its dependence on Russian gas following the conflict in Georgia, has offered Nigeria financial and political backing for a €15bn ($21bn, £12bn) trans-Saharan pipeline to pump its gas directly to Europe.

Renewed European interest in the project comes against a backdrop of mounting fears that Gazprom, the Russian gas monopoly, is intent on winning access to Nigeria's vast gas reserves as part of a strategy to tighten its grip on energy supplies to Europe.