The charges include arson, damage to property, escape from custody and assault.
A senior police officer involved in the investigation told Daily Post that over 20 inmates are expected to face these charges.
Only inmates involved in assaulting police officers on duty will face the charge of assault.
The Correctional Center at the Stade area in Port Vila was set on fire on Dec. 19, reportedly by inmates who were not happy with conditions at the correctional center.
The inmates made their concerns known in a 90-page report distributed to media and prominent individuals in Port Vila weeks before the prison house went up in flames.
In the report, inmates gave a deadline for their demands after which they threatened to burn the prison facility.
