Officials in Puerto Rico now say two thousand 975 people have died following Hurricane Maria, a devastating storm that struck the US island territory in September 2017.
The revised death toll is nearly fifty times the previous estimate of 64.
Governor Ricardo Rossello accepted the findings in a long-awaited independent investigation.
The Mayor of the capital, San Juan, accused the US government of deliberately downplaying the impact of the storm.
Puerto Rico has struggled to repair its infrastructure and power grid since the storm, and is asking US Congress for 139 billion dollars in recovery funds.