A massive fire has broken out at Brazil’s National Museum in Rio de Janeiro, engulfing the entire building, just months after the museum marked its 200th anniversary.

The incident began on early Sunday afternoon when a fire erupted in the three-story building. Footage broadcast on Brazilian TV showed that the fire had spread throughout all floors of the building.

It was not immediately known if anyone was injured, but the fire broke out when the museum was closed.

The National Museum marked its 200th anniversary earlier this year. One of the largest museums of natural history and anthropology in the Americas, it is home to a number of priceless items, including Egyptian artifacts and the oldest human fossil found in Brazil.

The building dates back to 1818 and was used as a palace of the Portuguese Royal Family and later to the Brazilian Imperial Family.