Detectives investigating the case of Sarah Everard have been examining a disused garage owned by the suspect’s family and a network of tunnels beneath it, according to reports.
As the search continued, human remains found in woodland on Wednesday have sadly been confirmed by the Metropolitan Police as belonging to the her.
Wayne Couzens, 48, remains in custody at a London police station arrested on suspicion of the kidnap and murder of Ms Everard.
Officers have been seen searching a disused garage which was reportedly once run by the Couzens family at the top of the white cliffs overlooking Dover harbour.
The garage was run by the family for 48 years until 2015, the Times newspaper reports.
Police were reportedly looking at the entrance to a network of tunnels, blocked by a metal gate, and a shelter underneath the garage.
Detectives were also said to be assessing the Western Heights of Dover, an 18th century fortification which you can get to by a footpath from the garage and which has hundreds of rooms and passages, according to reports.
Police earlier confirmed human remains were found in an area of woodland in Ashford, and officers have been searching land at a disused outdoor activity and golfing centre near the village of Great Chart.
Kent Live reporter Henry Collier, at the site in Ashford on Friday where police found the remains, told the Mirror around 100 police officers were still on the scene.
He said: “There is still a big police presence blocking off the entrances and all roads near the site.
“Officers in what looked like diving suits were leaving as I arrived at midday. A police helicopter was still circling overhead then too.
“I saw a member of the public drive up to the cordon and hand police some flowers, which they added to the other flowers and notes by the entrance.
“It feels very still, and a little bit eerie.”
Ms Everard, a 33-year-old marketing executive, went missing after leaving a friend’s house in Clapham, south London, around 9pm on March 3.
Clapham Common, a 220-acre park, and surrounding local properties were searched in the days that followed her disappearance.
Police looked in ponds, drains and bins in an attempt to find her, before cordoning off a block of flats in Clapham.
Officers released footage taken from a private doorbell-type camera showing Ms Everard was walking alone along the A205 Poynders Road towards Tulse Hill, just south of Brixton.
On Tuesday, March 9 police were using sniffer dogs to search gardens in streets around the search site near Ms Everard’s envisaged route home and in the nearby Oaklands Estate.
Officers also searched a pond in Clapham Common and drains along the A205.
Police also released fresh images of Ms Everard – wearing the coat in which she disappeared – as they continued to appeal for the public’s help.
Later in the day, the Met set up a cordon around the Poynders Court housing complex on Poynders Road as part of the search, with forensics officers seen examining the area.
The following day, Wednesday, after the arrest of a serving police officer, detectives searched a home and woodland at two locations in Kent.
One was on land near Ashford and the other at a property in Deal.
A tent was erected at the front of a house in Freemens Way in Deal, and multiple cars were taken away by investigators.
On Wednesday evening, Met Commissioner Cressida Dick announced that what appeared to be human remains were found in woodland in Ashford, Kent.
She said hundreds of officers and other police staff continue to work “around the clock” on the investigation.
A woman aged in her 30s, who was arrested on suspicion of assisting an offender, has been released on bail to return to a police station on a date in mid-April.