The Senate was thrown into chaos on Wednesday as lawmakers argued over sitting arrangements.
The noise followed after the senate president, Bukola Saraki, refused to allow former minority leader, Godswill Akpabio, contribute to a point of order earlier raised by Bassey Akpan.
Mr Saraki, thereafter said he would not recognise Mr Akpabio's contribution because he was not sitting in the appropriate seat.
"Senator... eh... former Minority Leader, you know you can't speak from there. You can't. Go to your seat, when you get to your seat, I'll recognise you," he said.
He, thereafter, asked the leader of the Senate to proceed with other items on the Order Paper.
But the senate leader, Ahmed Lawan, stood up to defend Mr Akpabio.
"If he decides to sit there, let him. There is no microphone there. Let us not take the panadol for his headache. Let me advise, that even though we have only six, seven months to go, let's do what is right," he said.
Thereafter, the lawmakers began to shout at each other, with each person trying to defend his or her party.
Efforts by the senate president to call the lawmakers to order, were unsuccessful as some senators were seen rising from their seats to confront senators from the opposition parties.