Rescuers in a Japanese holiday town hit by a deadly landslide were forced to suspend their search for survivors several times on Sunday as more rain lashed the devastated area.

Rescue operations resumed on Sunday with 1,000 workers, an official said
Rescue operations resumed on Sunday with 1,000 workers, an official said AFP / CHARLY TRIBALLEAU

Two women were confirmed dead after torrents of mud crashed through part of the hot-spring resort of Atami in central Japan on Saturday morning, following days of heavy downpours.

Nineteen people have been rescued and around 20 others are still missing, the town's disaster-management spokesman Yuta Hara told AFP.

The highest evacuation alert was issued on Saturday to Atami
The highest evacuation alert was issued on Saturday to Atami AFP / CHARLY TRIBALLEAU

"We are doing our best to rescue survivors while carefully checking the weather and other conditions," he said.

Hara said around 130 homes and other buildings had been destroyed as the landslide swept through the residential area, leaving behind a quagmire that stretched down to the nearby coast.

An air-conditioning unit dangled from one devastated home with solar panels on the roof
An air-conditioning unit dangled from one devastated home with solar panels on the roof AFP / CHARLY TRIBALLEAU

Vehicles were buried and buildings tipped from their foundations, with an air-conditioning unit seen dangling from one devastated home towards the slurry below.

Hara said the landslide was one kilometre (0.6 miles) long and 120 metres (400 feet) wide at some points.

Central Japan town devastated by landslide
Central Japan town devastated by landslide AFPTV / Quentin TYBERGHIEN

Hundreds of rescue workers and military personnel were combing through the mud and debris with diggers and on foot, climbing across cracked roofs and sticking poles into the ground to check for bodies.

TV footage showed coast guard divers searching in murky seas, while police officers scoured damaged houses with sniffer dogs.

Two people have been confirmed dead after the disaster at the hot-spring resort of Atami
Two people have been confirmed dead after the disaster at the hot-spring resort of Atami JIJI PRESS / STR

Rain hampered rescue operations however, with workers forced to abandon the site multiple times as smaller landslides took place and disaster warning alerts were issued.

Survivors at a nearby evacuation centre told AFP of their panic when the landslide began.

Torrents of mud crashed through part of the town on Saturday morning following days of heavy rain
Torrents of mud crashed through part of the town on Saturday morning following days of heavy rain AFP / CHARLY TRIBALLEAU

"When I opened the door, everyone was rushing into the street and a policeman came up to me and said: 'What are you doing here, you have to hurry, everyone is evacuating!'" local resident Kazuyo Yamada told AFP.

"So I went out in the rain in a hurry, without changing, with just a bag."

Central Japan town devastated by landslide
Central Japan town devastated by landslide AFPTV / Quentin TYBERGHIEN

Fisherman Hisao Shima, 58, said that when he heard the landslide warning siren, at first he "didn't think it was going to be that bad".

"But when I stepped outside later, the rumbling of the ground all around was very strong," he said.

Atami, around 90 kilometres (55 miles) southwest of Tokyo, saw rainfall of 313 millimetres in just 48 hours to Saturday -- higher than the average monthly total for July of 242.5 millimetres, according to public broadcaster NHK.

Much of Japan is currently in its annual rainy season, which lasts several weeks and often causes floods and landslides.

Scientists say climate change is intensifying the phenomenon because a warmer atmosphere holds more water, resulting in more intense rainfall.

More downpours are forecast in the coming days across Japan's main island.

"This rainy-season front is expected to keep causing heavy rain in many areas. There is a fear that land disasters could occur even when the rain stops," Prime Minister Yoshihide Suga told ministers at an emergency meeting.

NHK said on Sunday that at least seven other landslides had been reported across Japan.

Town disaster spokesman Hara said 387 residents had been evacuated, with survivors in face masks seen reading newspapers with images of the disaster on the front page.

Residents in many other cities in Shizuoka have also been ordered to evacuate.