Policemen and soldiers have arrived at the Ikoyi Correctional Centre in a bid to foil an attempted jailbreak.
A video sent to our correspondent by an eyewitness shows smoke billowing from parts of the centre while inmates are seen running.
It was learnt that the prison authorities had immediately notified the police and the military authorities for backup.
The eyewitness, who wished to remain anonymous, said, “I can see them from my balcony at the moment. Soldiers and policemen have arrived. I saw prisoners throwing stones and I saw fire.
“A lot of the prison officials have gathered at the entrance of the prison while some of the inmates have retreated.”
Our correspondent also heard gunshots emanating from the prisons.