POLICE are investigating whether a woman is trapped inside a house after part of the property collapsed during heavy rainfall overnight.
Devon and Cornwall Police say Susan Norman, who is in her 60s, has not been seen or heard of since 6pm yesterday.
Her house in Looe, Cornwall, was hit by a landslide and floodwater last night.
More than dozen people living in the street have been evacuated and accounted for.
But police this morning used a sniffer dog in the search for Ms Norman.
Neighbours said they heard “windows popping'' at the three-storey property under the pressure of a torrent of surface water which had been washed down the road behind the building, which is split into three flats.
Police and fire crews are waiting for engineers to assess whether or not the building is safe enough for further searches.
A springer spaniel sniffer dog, used by emergency services to detect the scent of humans, was sent to the edge of the property this morning.
Police said thermal imaging cameras used to identify signs of life also proved inconclusive.
Devon and Cornwall Police duty inspector Graham Claybourn said Ms Norman, who is in her 60s, had returned from a trip yesterday evening.
He said: “The woman (Ms Norman) was away but returned last night at about 6pm. There are no other suggestions where she might be - she might be in there (the property).
“Our priority is to find the lady. If we cannot account for her, she will turn into a missing person.”
The property, named “Veronica'', is one of a number of detached homes along the road, overlooking a sheer drop to the picturesque Looe Valley branch line.
Sandplace Road, which runs along the entrance to the properties, has been closed to traffic for months after a landslide nearby just before Christmas.
The road running along the back of the homes, a main road into the coastal town of Looe, was said to have been carrying excess surface water which locals said was caused by a combination of heavy rainfall and uncleared drains.