A SUPERMARKET was evacuated on Tuesday after a sinkhole opened up in a city which is known for the phenomenon.

Firefighters said they will "look into" the hole after staff and customers were asked to leave Sainsbury's, in the centre of Ripon, North Yorkshire, when the ground gave way in an alley behind the building.

Police and the North Yorkshire Fire and Rescue Service remained at the scene throughout the day and the supermarket was evacuated.

The area was cordoned off and the police used a drone in an attempt to gather aerial footage to assist in the investigating into the depth and extent of damage caused.

A spokesman for Harrogate Borough Council said it is offering its support but the responsibility for restoring the land rests with the landowner West Court properties and Sainsbury's.

Officials from the council's emergency planning department were at the scene throughout the day as engineers from both Sainsbury's and the land owner carried out their surveys.

Until the extent of the damage is fully known, it is difficult to estimate how long the repair operation will take, the spokesman said.

He said: "It is on Sainsbury's land, it is down to the landowner; one side it is Sainsbury's and the other side is West Court properties, they own the shopping arcade so it is down to the two of them to work out the best way of dealing with it."

Ripon is well-known for sinkholes.

In 2016, a 74-year-old woman described her lucky escape after she almost fell into a 30ft (9m) deep sinkhole which appeared in her back garden in Magdelen's Road.

North Yorkshire Fire and Rescue Service said on Twitter on Tuesday: "Police and Fire and local authority Emergency Planning all currently investigating a report of a possiblesinkhole opening in Ripon.

"No persons involved. Police trained drone operator en route to gain aerial footage. Until then, emergency services will continue to look into it."

Police said they were called to the store at 10am.

The Northern Echo:

The sinkhole which opened up in gardens in Magdalens Road, Ripon

In November 2016, seven properties were evacuated in Magdalen's Road when a 49ft (15m) by (49ft) 15m hole opened up behind a terrace of houses.

Pensioner Frances O'Neill said she was woken by a "tremendous noise" and almost fell in when she went out on to her back patio to investigate.

Two years earlier, only 400 yards away in Magdalen's Close, a house had to be demolished after a sink hole formed.

After the 2014 event, the British Geological Survey (BGS) said gypsum under the town had dissolved to form a maze-like cave system.

It said in a report that sinkholes appeared in Ripon every two or three years in the 1980s and 1990s but there had not been any reported in the seven years before the 2014 event.

The BGS said there were a number of possible triggering mechanisms, relating to action of water underground.