The secretary general of the Organization of the Petroleum Exporting Countries (OPEC), Mohammad Barkindo, has died at the age of 63, an official said Wednesday.

"We lost our esteemed Dr Muhammad Sanusi Barkindo. He died at about 11pm yesterday 5th July 2022," Mele Kyari, Nigerian National Petroleum Corporation group chief executive officer and compatriot, tweeted.

"Certainly a great loss to his immediate family, the NNPC, our country Nigeria, the OPEC and the global energy community. Burial arrangements will be announced shortly."