Nigeria's largest steel plant, Ajaokuta is finally starting production 40 years after it was built

Nigeria's largest steel plant will finally start production four decades after it was built.

The Ajaokuta mill has cost the country more than $8bn, but has never produced any steel. It is hoped that getting the facility off the ground will save Nigeria billions of dollars in steel imports.

Built on a 24,000 hectares (59,000 acres) site in 1979 with the coke oven and byproducts plant larger than all the refineries in Nigeria combined.