Search and rescue personnel wade through the waters of a flooded neighborhood as they search for survivors in the aftermath of Hurricane Ian, in Fort Myers, Florida. Photo: AFP
A huge search and rescue effort is continuing in Florida in the aftermath of Hurricane Ian, which cut a swathe of destruction across the US state.
At least 10 people have died in the state but officials fear the confirmed toll could rise considerably.
Joe Biden has warned the category one storm could be the deadliest hurricane in Florida's history, with a "substantial loss of life".
Ian is now moving inland and heading towards North and South Carolina.
A blackout is still affecting some 2.2 million Florida homes and businesses.
The flood waters have been so severe they have trapped some people in their homes, officials said, with the National Guard going door to door in the city of Orlando to rescue those stranded.
The 10 deaths that have have been confirmed were all in the south-west Charlotte County, which saw intense winds.
Joseph Tiseo, a local commissioner, told the BBC the area had a "tremendous wind event that lasted for 12 hours straight... it was brutal".
He said said it was not yet clear how many of the deaths were a direct result of the hurricane.
A little further south, Lee County took the brunt of the storm surge.
The state's Governor Ron DeSantis told a news conference on Thursday evening that the damage in Fort Myers, a harbourside city there, was "almost indescribable".
"To see a house just sitting in the middle of Estero Bay, literally must have gotten picked up, flown because of the massive wind speed and the storm surge and deposited in a body of water," he said.
"I would say the most significant damage that I saw was on Ford Myers Beach, some of the homes were wiped out, some of its was just concrete slabs"
In this aerial view, boats sit atop one another in a marina near Fort Myers Beach on 29 September, 2022 in San Carlos Island, Florida. Photo: AFP
One woman who lost her home said the experience was "numbing" and had her feeling "overwhelmed".
"It's not my first hurricane but it's my first total loss," Karen, who lives on San Carlos Island in Fort Myers told Reuters.
Some residents had to swim out of their homes.
"You have to either swim or drown," an Orlando woman told CBS News.
A woman in Fort Myers, who swam to safety when her ground floor apartment began to flood, said when she returned home she "had to wait about five minutes for all the floodwaters to come out".
And at the Sun Seekers mobile home park in North Fort Myers, residents recounted their terror as they tried to protect themselves with blankets.
"It was terrifying, because you're helpless", one of the residents, Kim said. "We had no [phone] service to call anyone, but no one would have come anyway."
At the governor's briefing, Florida Division of Emergency Management director Kevin Guthrie warned about "indirect deaths" - the fatalities that could happen after a storm system has passed.
He warned homeowners to watch out for power lines mixed in trees and said no one should be tinkering with generator sand chainsaws, or climbing ladders without proper training.
"People need to be extremely careful," Guthrie said.
"If you do not know how to use a chainsaw. If you do not know how to climb a ladder. If you do not know the difference between a cable line and a power line, you should not be doing that."
Some parts of Naples, a seaside city south of Fort Myers, have been rendered a dark and deserted ghost town, and the city's iconic pier has been smashed in half.
The BBC's Bernd Debusmann, who is reporting from Naples, said a concession stand - which just days ago marked the halfway point on the pier - now stood precariously over the water, with splintered pieces of wood hanging off.
About a block from the beachfront, some roads remained impassable and underwater, while others had been left covered in mud as the slowly water recedes.
Hurricane Ian hit Cuba first, causing a total blackout in the country on Tuesday.
Meanwhile in Puerto Rico, the massive clean-up effort continues, after the hurricane hit the Caribbean island last week.
There was also a power blackout there, and ten days on, more than 269,000 households are still without electricity, according to poweroutage.us.
Puerto Rico was already reeling from Hurricane Fiona, a category one storm that hit just days earlier, on 18 September.
As Hurricane Ian rolls on and attention moves to Florida, many on the island are worried about being forgotten.
"To the people of Puerto Rico, we have not gone away," President Biden said on Thursday, speaking at the headquarters of the Federal Emergency Management Agency in Washington DC.
"I am committed to you and the recovery of the island, we will stand by you no matter how long it takes to get it done."
- BBC