OSLO — Norwegian rescuers deployed drones and dogs to negotiate unstable clay soil in a search for 10 people still missing on Thursday after a landslide in southern Norway swept away more than a dozen buildings the previous day.

Another 10 people were injured, one critically, after the landslide in the residential area in the Gjerdrum municipality, about 30 km (19 miles) north of the capital, Oslo.

Conditions remained challenging, with the clay ground still too unstable for emergency workers to walk on and temperatures registering -1 Celsius (30F) at 0600 GMT.

Destroyed houses are seen in a crater left behind by a landslide in the town of Ask, Gjerdrum county, some 40 km northeast of the capital Oslo, on Wednesday.Fredrik Hagen / AFP – Getty Images

Download the NBC News app for breaking news and politics

The edges of the crater continued to break away, authorities said, asking people not to approach the area. Some 1,000 people have so far been evacuated.

“We are still searching for survivors,” the head of the police operation at the site, Roger Pettersen, told reporters, adding that both children and adults were missing.

During the night, police used drones with heat-seeking equipment to search for survivors in the debris. Helicopters have tried lowering military and police with search-and-rescue dogs on some structures believed stable enough to stand on.

A Dalmatian dog was rescued during the night.

A person is lowered from a rescue helicopter near the site where a big landslide hit a residential area in the village Ask, some 40 km north of Oslo.Jil Yngland / AP

On Thursday, Pettersen asked locals not to send up fireworks to celebrate New Year’s Eve so as to not interfere with the helicopters and drones.

Separately, questions were being asked about why construction was allowed in the area.

Broadcaster TV2 said a 2005 geological survey for municipal authorities labelled the area at high risk of landslides. But new homes were built three years after the report was published.

In a rare public statement, Norway’s King Harald said the landslide had left a deep impression.

“My thoughts are with all those who are affected, injured or have lost their homes, and those who now live in fear and uncertainty of the full extent of the catastrophe,” the 83-year-old monarch said in a statement released by the royal palace.

Source: | This article originally belongs to Nbcnews.com

You May Also Like

Our Favorite International Home Listings of 2022

This year, the International Real Estate column led readers around the world…

NFL owners unanimously approve a rule banning the hip-drop tackle

ORLANDO, Fla. — The NFL is eliminating the hip-drop tackle. NFL team…

FCC Deadlock Shields Wireless Companies From Privacy Penalties

WSJ News Exclusive Media & Marketing Partisan divide leaves regulator short of…

Pink Stanley Quencher Starbucks cup release sparks mayhem at Target stores

The release of a limited-edition pink version of the viral 40-ounce Stanley…