The death toll from Hurricane Ian has reportedly risen to over 90 in Florida as rescue personnel continue to search for survivors.
Officials in Florida have come under fire as critics allege residents in some hard-hit areas did not receive enough advance warning to evacuate.
At least half of the deaths recorded so far are in Lee County, where Ian made landfall as a Category 4 hurricane.
President Joe Biden is expected to visit Florida on Wednesday.
On Monday, Mr Biden visited Puerto Rico - which was struck by Hurricane Fiona just days before Ian truck Florida - where he promised $60m (£53m) in aid to help the US territory.
"We're going to make sure you get every single dollar promised," he said in the municipality of Ponce, parts of which were still without power on Monday.
According to the BBC's US partner network CBS, the hurricane's death toll in Florida climbed to at least 94 on Monday afternoon. Another four deaths have been confirmed in North Carolina.