Minister says 'no insolvency' in Nigerian state oil firm

Nigeria's Oil Minster, Diezani Allison-Madueke, has told the BBC the country's state oil firm is not insolvent.

This follows comments by a junior government minister that the Nigerian National Petroleum Corporation (NNPC) was unable to pay debts of $5bn.

Nigeria is one of the world's biggest oil exporters.

The BBC's Duncan Bartlett asked her to clear up the confusion over whether the NNPC was insolvent.