Nigeria's Senate voted on Tuesday to probe the state oil firm's alleged withdrawal of $1.05 billion from gas company Nigeria LNG.
The Premium Times newspaper reported on Monday that the Nigerian National Petroleum Corporation (NNPC) had used proceeds from Nigeria LNG - a venture between the state oil firm, Royal Dutch Shell, Total and ENI - to fund purchases of, and subsidies for, fuel during a shortage in early 2018.
NNPC was not available for immediate comment.
(Reporting by Camillus Eboh; writing by Paul Carsten; editing by Jason Neely)
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