Operatives of the Rapid Response Squad have surrounded the Gani Fawehinmi Park in Ojota, the venue of the June 12 protest in Lagos State.
About three Hilux Vehicles and two armoured tanks were seen at the venue on Saturday.
Three people who wanted to enter the park were prevented from doing so by the personnel in the vehicles.
Also, in a show of force, one armoured tank and five Hilux Vehicles patrolled the area.
Journalists from different media houses are currently on the ground, while protesters have not been sighted.
Earlier, the Lagos State Police Command claimed it is unaware of any planned protests by any group/groups on June 12 Democracy Day.
The command has also assured residents of safety during the June 12 celebrations.
The spokesman of the command, CSP Olumuyiwa Adejobi, said this in a statement on Friday.
The Commissioner of Police in Lagos, Hakeem Odumosu, said the public should disregard such directives by organisers of the alleged protest for people to stay at home during the protest.
He, therefore, appealed to the public to disregard any sit-at-home order called by certain groups which is being circulated in social media and go about their lawful businesses.
“The police and other security agencies have made necessary arrangements to maintain law and order across the state,” he said.