This was told by the regional prosecutor of the department Var Patrice Camberu.
According to the Journal du Cameroun, the 18-year-old suspect damaged several amphorae in the museum dating from the Roman Empire.
According to the prosecutor, the man "was completely delirious, it was impossible to interrogate him."
A previously unknown person sneaked into the museum and locked himself there. Threats in Arabic were discovered at the site.
Police officers detained a man during a special operation.