Indonesia’s anti-graft court sentenced a former agriculture minister to 10 years in prison on Thursday after finding him guilty of corruption-related extortion, abuse of power and bribery involving ministry contracts with private vendors.

The case has tarnished President Joko Widodo’s credibility in fighting corruption. Five other members of Widodo’s cabinet had been sentenced to prison terms in corruption cases, casting a shadow over his efforts to clean up government before his term ends in October.

The court in the capital, Jakarta, ruled that the former cabinet minister, Syahrul Yasin Limpo, was guilty of abusing his power by enriching himself and other officials. It also ordered him to pay a 300 million rupiah fine, and said he would be subject to another four months’ imprisonment if he fails to pay.

“The defendant has legally and convincingly been proven guilty of corruption,” presiding Judge Rianto Adam Pontoh said. “He wasn’t a good example as a public official, what he has done is counter the government’s efforts to fight corruption and enriched himself by corruption."

Limpo was arrested last October by the Corruption Eradication Commission, known as the KPK. He has denied wrongdoing. (AP)