An archaeologist has confirmed damage to the mask after a visit to the museum.
The New York Times reports archaeologists plan to file charges against Egyptian Museum officials. In a series of tweets, Monica Hanna wrote Egypt's Heritage Task Force will take evidence to the public prosecutor.
The task force also released an image and statement about the damage on its Facebook page.
The Egypt's Heritage Task force denounces the faulty conservation procedures carried out on the mask of Tutankhamun, and will take due legal steps to hold officials accountable of such a crime.