Former Nigerian Minister of Petroleum Resources, Dieziani Alison-Madueke, has denied allegations of bribery as her trial continues in the United Kingdom.

British prosecutors claim Alison-Madueke lived a “life of luxury” funded by bribes during her tenure as Nigeria’s oil minister. The 65-year-old appeared in London’s Southwark Crown Court on the first day of proceedings.

She faces multiple counts of bribery relating to the period between 2011 and 2015, when she served under then-President Goodluck Jonathan. Prosecutors said that individuals seeking “lucrative oil and gas contracts” with Nigeria’s state-owned petroleum corporation offered Alison-Madueke “significant financial or other advantages.”

The prosecution emphasized that, as a minister, she should not have accepted benefits from parties engaged in highly profitable dealings with government-owned entities.

Alison-Madueke is alleged to have received financial or other advantages from people connected to Atlantic Energy and SPOG Petrochemical, both of which secured contracts with the Nigerian National Petroleum Corporation (NNPC) or its subsidiaries.

Among the alleged benefits are £100,000 (approximately $137,000) in cash, chauffeur-driven cars, a private jet flight to Nigeria, and the payment of refurbishment and staffing costs for several London properties.