Ifeanyi Ubah, the owner of Capital Oil, has been arrested and detained by the Department of State Services.

The reason for his arrest remains unknown.

But the businessman had previously been implicated in a fraud saga with the Nigerian National Petroleum Corporation.

He was accused of embezzling funds from an illegal sale of crude oil saved in his facility.

One of his staff working on a project site in Anambra confirmed the arrest.

He said news of the arrest was quietly discussed by his superiors on Thursday.