LAHAINA, Hawaii (AP) — A mobile morgue unit arrived Tuesday to help Hawaii officials working painstakingly to identify the remains of people killed in wildfires that ravaged Maui, as the death rose above 100 and teams intensified the search for more dead in neighbourhoods reduced to ash.

Governor Josh Green announced the confirmed death toll had risen from 99 to 101 in an afternoon video address, saying, “We are heartsick that we’ve had such loss.”

The US Department of Health and Human Services deployed a team of coroners, pathologists and technicians along with exam tables, X-ray units and other equipment to identify victims and process remains, said Jonathan Greene, the agency’s deputy assistant secretary for response.

“It’s going to be a very, very difficult mission,” Greene said. “And patience will be incredibly important because of the number of victims.”

A week after a blaze tore through historic Lahaina, many survivors started moving into hundreds of hotel rooms set aside for displaced locals, while donations of food, ice, water and other essentials poured in.

Crews using cadaver dogs have scoured about 32 per cent of the area, the County of Maui said in a statement Tuesday. The governor asked for patience as authorities became overwhelmed with requests to visit the burn area.

Just three bodies have been identified, and officials expected to start releasing names Tuesday, according to Maui Police Chief John Pelletier, who renewed an appeal for families with missing relatives to provide DNA samples. So far 41 samples have been submitted, the county statement said, and 13 DNA profiles have been obtained from remains.

The governor warned that scores more bodies could be found. The wildfires, some of which have not yet been fully contained, are already the deadliest in the US in more than a century. Their cause was under investigation.

When asked by Hawaii News Now if children are among the missing, Green said Tuesday: “Tragically, yes. … When the bodies are smaller, we know it’s a child.”

He described some of the sites being searched as “too much to share or see from just a human perspective.”

Another complicating factor, Green said, is that storms with rain and high winds were forecast for the weekend. Officials are mulling whether to “preemptively power down or not for a short period of time, because right now all of the infrastructure is weaker.”

A week after the fires started, some residents remained with intermittent power, unreliable cellphone service and uncertainty over where to get assistance. Some people walked periodically to a seawall, where phone connections were strongest, to make calls. Flying low off the coast, a single-prop airplane used a loudspeaker to blare information about where to get water and supplies.