https://arstechnica.com/science/2018/05/puerto-rico-hurricane-death-toll-likely-more-than-70-times-official-estimate/

In Puerto Rico, the official government estimate for the number of people who died as a result of Hurricane Maria (the hurricane that struck the island in late September 2017) is just 64. But a new study from Harvard University, published in The New England Journal of Medicine, estimates that the true number is closer to 4,645—that is, more than 70 times the official estimate.