A big oval-shaped UFO was sighted in Cuiabá-MT [2002]
A man reported the fall of a big blue UFO in Diamantino-MT [1998]
A pilot observed a stationary multicolor UFO between Cuiabá-MT and São Paulo-SP [1995]
Two star-like UFOs hovered over São Félix do Araguaia-MT for 2 hours [1994]
Two pilots reported 4 ‘balls of fire’ during a flight between Porto Velho-RO and Cuiabá-MT [1993]
Brazilian UFO Archives 