Another Senator, Ovie Omo-Agege, has defected to the All Progressives Congress.
The defection was announced on Tuesday during the Senate plenary.
Omo-Agege was elected on the platform of Labour Congress to represent Delta Central Senatorial District.
Several senators, especially those elected on the platform of the Peoples Democratic Party, have in recent times defected to the APC.
Omo-Agege announced his defection himself on Tuesday.
Until the announcement, he was the only senator elected on the platform of the Labour Party in the Senate.
He said he defected because of the internal crisis rocking the party.