Government officials across West Africa have given their full backing for an energy project intended to run through parts of Africa and Europe.

Supported by the regional authorities that constitute the Economic Community of the West African States (ECOWAS), the project is a gas pipeline extending from Nigeria to Morocco, with the eventual goal of establishing a major infrastructural project to transport fuel to Europe.

On Sunday, in Sierra Leone, leaders from ECOWAS inked an agreement that officially backs the Nigeria-Morocco pipeline project.

The deal gives the pipeline “the essential sovereign foundation to move from a strategic vision to concrete implementation,” the CEO of the NNPC, Nigeria’s top oil company, Bayo Ojulari, said in a statement.

The Nigeria-Morocco project, spanning 6,800 kilometers (4,230 miles), would transport Nigerian gas along the West African coast through 13 countries before connecting to European networks via Morocco and Spain.