This is what the peaceful protesters have always feared, mobs hijacking the protests to unleash mayhem.
The announcement by Lagos authorities is on the heels of thugs reportedly setting fire to a police station in the Orile part of the state, as widespread protests continue in Nigeria over police brutality.
Videos posted on social media show the police station burning, with people standing outside cheering.
It is not clear if there were officers inside the building at the time or how the thugs managed to set the building aflame.
In one video, some people can be seen throwing objects at the police station moments before the fire breaks out.
Authorities in the state had ordered schools to shut from Tuesday as violence escalated in some parts of the state amid peaceful protests against police brutality.
On Monday, hoodlums attacked police in the Yaba area of Lagos, destroying police trucks and chasing officers away. Hoodlums have also been sighted in some areas, erecting roadblocks and charging motorists a fee.
This is the second successive day that a police station has been torched in Nigeria, as organisers of peaceful protests say their demonstrations have been taken over by sponsored thugs.
In the southern Edo state on Monday, police say two police stations were attacked with hoodlums burning cars and stealing police equipment. There were also jailbreaks at two prisons in the state, leading the government to declare a curfew there.
In the capital, Abuja, protesters accuse the police of backing armed thugs who attacked peaceful demonstrators, leading to the death of three persons and burning several cars.
The police have not yet commented on the accusation.
Protesters, who have largely been peaceful since demonstrations broke out two weeks ago, accuse authorities of sponsoring the armed thugs to disrupt the protests and promote violence, to justify sending in the military and use of force by security.