Congo’s government says the mausoleum of assassinated independence leader Patrice Lumumba has been vandalized. It is not immediately clear whether Lumumba’s remains — a single gold-capped tooth — were damaged or stolen.

Authorities in the Democratic Republic of the Congo have launched an investigation after the mausoleum where Patrice Lumumba’s tooth is being kept was vandalized. Per Reuters, the incident occurred on Monday evening.