The 150 migrants have taken over the building of Jean-Jaures school since Friday as they seek shelter, electricity, gas and water.
Authorities have labelled the takeover of the school in Paris’s 19th quarter a “savage occupation”.
The chief constable of the area, Jean-François Carenco, has said: “In this country, it is the law that speaks and not force.
“They are attacking a building that is not empty but is having work done to it.
“It is a disgrace. France is a country of refuge, but not a chaotic country.”
Authorities have asked migrants to leave the school, which needs to welcome students after it has been renovated.
Neighbours and the local authority are concerned that the illegal occupation could lead to a possible deterioration of the area and lead to social issues.