Marie-Alta Jean Baptiste, head of Haiti's civil protection office, told AFP: 'First, the bus plouged into two pedestrians, killing one of them, and injuring the other'.
The incident occurred in the city of Gonaives, 90 miles outside the capital of Port-au-Prince.
The vehicle initially struck two pedestrians before veering into a bigger group of people in the town of Mapou, nearly 5 km away reports Reuters.
"It then attempted to flee", she added, but ran into a group of musicians who were traveling on foot.More news: Marquette to face SC as 10 seed in NCAA tournament
Faustin said angry festival-goers then attacked the bus and tried to burn it before police rescued the passengers aboard. Following the accident, people began throwing rocks at the bus and other vehicles. The incident started when the driver of the bus mowed down two people, killing one.
"Usually the drivers involved in such accidents don't stop because they are afraid they might be killed [in reprisal]", Fred Henry, the area's deputy representative said, as cited by Reuters. Haiti's roads are notoriously risky, with road safety rarely observed by drivers and other users.
The musicians were taking part in a rara parade, which involves playing traditional instruments and being joined by passers-by.