She said the suspects were arrested on the night of June 27 during a coordinated operation in Otukpo Local Government Area.
Ms Edet said the command had begun a full investigation into the circumstances surrounding the killings.
The company’s General Manager, Alexander Fanafa, sympathised with the families of the affected passengers.
Mr Edet said the assassins attacked and shot the politician at close range, and he died on the spot.
The governor described the singer as an entertainment guru.
The state police spokesperson confirmed the incident on Thursday in Makurdi.
According to him, the police received information on Saturday at 1.45 pm that an unknown corpse was seen at the Edikwu river bank with its internal organs removed.
Mr Buhari condemned terrorism as a tool in inter-communal conflicts, urging that the attackers be found and dealt with swiftly under the law.
