Nicola Bulley’s family and friends have questioned a police theory that the missing dog walker fell in a river.

The search for mother-of-two has now run for more than a week.

In a Facebook post, Ms Bulley’s sister, Louise Cunningham, urged people to “keep an open mind” as there is “no evidence whatsoever” that the dog walker fell in the river.

She said: “Off the back of the latest Police media update, please can I add there is no evidence whatsoever that she has gone into the river, it’s just a theory.”

Bury Times: Nicola BulleyNicola Bulley (Image: Lancs Police)

Here is a run down of everything we know so far:

January 27

The 45-year-old dropped her daughters, aged six and nine, off at school in the morning before walking her dog, Willow, in St Michael’s on Wyre, Lancashire.

Lancashire Police have said the mortgage adviser, from nearby Inskip, had been walking along a path beside the River Wyre just before 9am.

She was seen by a dog walker who knew her at around 8.50am, and their pets interacted briefly before they parted ways, according to the force.

At 8.53am, Ms Bulley sent an email to her boss, before logging on to a Microsoft Teams call at 9.01am.

She was seen by a second witness at 9.10am, the last known sighting.

By 9.30am, Ms Bulley’s Teams call had ended, but her phone stayed connected to the call.

Approximately five minutes later, another dog walker found her phone on a bench beside the river, with Willow darting between the two.

At 10.50am, Ms Bulley’s family and the school attended by her children were told about her disappearance.

Lancashire Constabulary launched an investigation into Ms Bulley’s whereabouts on the same day and appealed for witnesses to contact them.

January 28

Lancashire Constabulary deployed drones, helicopters and police search dogs as part of the major missing person operation.

They were assisted by Lancashire Fire and Rescue Service, as well as Bowland Pennine mountain rescue team and the North West underwater search team.

January 29

Local residents held a meeting at the village hall to organise a search for Ms Bulley at 10.30am on Sunday, according to reports from The Mirror, and around 100 people joined the search.

Police urged volunteers to exercise caution, describing the river and its banks as “extremely dangerous” and saying that activity in these areas presented “a genuine risk to the public”.

Bury Times: Nicola BulleyNicola Bulley (Image: Lancs Police)

January 30

Superintendent Sally Riley from Lancashire Constabulary said police were “keeping a really open mind about what could have happened”, and that they were not treating Ms Bulley’s disappearance as suspicious.

January 31

Lancashire Constabulary spoke with a potential witness, a man who had been walking a small white fluffy dog near the River Wyre at the time of Ms Bulley’s disappearance.

Her family released a statement saying they had been “overwhelmed by the support” in their community, and that her daughters were “desperate to have their mummy back home safe”.

February 1

Ms Bulley’s parents, Ernest and Dot Bulley, spoke to The Mirror about the “horror” they faced over the possibility of never seeing her again.

Her father told the newspaper: “We just dread to think we will never see her again, if the worst came to the worst and she was never found, how will we deal with that for the rest of our lives.”

February 2

Lancashire Constabulary spoke with a second witness who they had identified with the help of the public using CCTV but they told police they did not have any further information to aid their inquiry.

Officers from the North West Police Underwater and Marine support unit searched the area close to where Ms Bulley’s mobile phone was found, while police divers scoured the River Wyre.

Meanwhile, Ms Bulley’s family appealed to the public for help tracing her.

Speaking with Sky News, her sister Louise Cunningham said: “There has got to be somebody who knows something and all we are asking is, no matter how small or big, if there is anything you remember that doesn’t seem right, then please reach out to the police.

“Get in touch and get my sister back.”

Ms Bulley’s father said his family hoped their interview would “spark a light” that would lead to her being found.

Bury Times: Nicola BulleyNicola Bulley (Image: Lancs Police)

February 3

Lancashire Police said they were working on the hypothesis that Ms Bulley may have fallen into the River Wyre.

Ms Riley urged against speculation, but said it was “possible” that an “issue” with Ms Bulley’s dog may have led her to the water’s edge.

She urged the public to look out for items of clothing Ms Bulley was last seen wearing, and gave an extensive list.

Ms Bulley’s friends also shared heartfelt appeals via television interviews, including Emma White, who told the BBC that Ms Bulley’s daughters were continually asking where she was.

February 4

Ms Bulley’s friend, Emma White, casts doubt on the police theory that she fell into a river, telling Sky News it was based on “limited information”.

She said: “When we are talking about a life we can’t base it on a hypothesis, surely we need this factual evidence.

“That’s what the family and all of us are holding on to, that we are sadly no further on than last Friday.”

Police issue another appeal for a pram walker who they considered to be a 'key witness' to come forward. The woman got in touch with police swiftly and was helping with their enquiries.

Detectives leading the case asked people to stop speculating and abusing on social media, saying: "Our enquiries to find Nicola are extensive and will include speaking to as many members of the public as possible.

"The speculation and abuse on social media aimed at some people who are merely assisting our enquiry on social media is totally unacceptable.

"We would urge people to remember that we are investigating the disappearance of Nicola, and the priority is Nicola and her family. We want to find her and provide answers to her family."