Lieutenant General Vo Van Tuan, an army spokesman, said that two objects were spotted in the northwestern province of Yen Bai on January 2, while the third one was detected later in neighboring Tuyen Quang province.
The balls, which weigh a half-pound, 13 pounds, and roughly a hundred pounds respectively, were all found in different locations. The smallest one crashed on a roof, not harming anyone, while the two others fell near a stream and in a maize field, according to media reports.