Oil tycoons deny paying bribes to former Nigerian minister

Diezani Alison-Madueke is accused of being treated to luxury home stays and lavish spending sprees in the UK, which she denies.

Oil tycoons deny paying bribes to former Nigerian minister
Diezani Alison-Madueke is accused of being treated to luxury home stays and lavish spending sprees in the UK, which she denies.