AS police continue searching for Katie Kenyon, and a man has been charged with her alleged murder, here is a timeline of events so far.
There is a large police presence in the woodland area of Bolton-by-Bowland in the search for the missing woman.
Andrew Burfield, 50, will go on trial later this year after being charged with killing Katie.
MORE: Man in court charged with murdering Katie Kenyon
Anyone with information should call police on 101 quoting log 800 of April 24th or you can contact police through the Major Incident Public Portal, or alternatively contact independent charity Crimestoppers on 0800 555 111.
Here is a timeline of all the events we know so far in the disappearance of Katie Kenyon.
Friday, April 22
At about 9.30am, a woman who matched Katie’s description was seen getting into a Ford Transit van in Todmorden Road, Burnley with a man.
The silver van, with the registration plate MT57FLC, travelled to the Bolton-by-Bowland area.
This was the last time Katie was seen.
Saturday, April 23
Katie's family raise the alarm that she is missing and report her disappearance to the police.
The family take to social media to see whether anybody can help in the search.
Sunday, April 24
Police release an appeal about missing Katie and say that a 50-year-old man has been arrested.
The appeal spoke of how the disappearance is very out of character for Katie.
The police appeal read: “Our enquiries so far suggest that at about 9.30am on Friday (April 22nd) a woman matching Katie’s description left an address on Todmorden Road, Burnley with a man and travelled in a silver Ford Transit registration MT57 FLC to the Bolton by Bowland area.
Read more: Arrest made in connection with the disappearance of Katie Kenyon
“She has not been seen since and we are appealing to anyone who was in that area and may have seen Katie, either in company or on her own, or who saw or has dashcam footage of a van matching the description to come forward and contact us.”
Police have described Katie as white, 33 and 5ft 9in tall with ginger hair. She was last seen wearing a blue cardigan, light blue and white top, black leggings and flip flops.
Monday, April 25
Police confirm the 50-year-old man has been arrested on suspicion of kidnap and was known to Katie.
Officers have been given a further 36 hours to interview him.
Read more: Kidnap suspect known to missing Katie Kenyon, say police
Police, fire and rescue, mountain rescue, sniffer dogs and CSI have been seen searching the woodland area at Bolton-by-Bowland and the hunt for Katie continues.
The family ask people to stay away from the area where Katie was last seen to allow police to conduct their search.
On social media, the family say they are "breaking" at the disappearance.
Read more: Katie Kenyon's family 'breaking' as search for missing woman continues
A photograph of the van which Katie got in on Todmorden Road has been released by police who are asking anyone who recognises it to come forward.
Throughout the day there was a police presence at a property on Todmorden Road.
Det Chief Insp Al Davies, of the Force Major Investigation Team, said: “We continue to be extremely concerned about Katie and we have a large team who are working hard to try and find out what has happened to her.
Read more: In pictures: Katie Kenyon search continues in Forest of Bowland
“I am keeping an open mind about what has happened to her but my concern obviously grows as time goes by.
“I would appeal again to anyone who was in the Bolton by Bowland area on Friday and saw anything suspicious to get in touch, especially if they saw the silver van or Katie alone or in company.
"Please do come and speak to us even if you think the information you have may not be important.
“We continue to support Katie’s family and to keep them updated with any developments.”
Tuesday, April 26
A 50-year-old man has been arrested on suspicion of the murder of Katie Kenyon.
Although police have not found her body, they believe that she is dead.
This is the same man who had earlier been arrested on suspicion of kidnap.
The man is believed to be known to Katie.
The 50-year-old man under arrest for Katie’s murder remains in custody where he is being questioned about her disappearance.
Katie’s family have been informed of the latest developments and continue to be supported by specially trained officers.
Det Supt Gary Brooks, Lancashire Police’s Head of Major Crime, said: “While I hold some slim hope that Katie may still be found alive I’m sad to say that Katie has now been missing for over four days.
"Despite extensive police enquiries and media appeals we have not found Katie nor have there been any sightings of Katie.
READ MORE: Man arrested for murder in case of missing Katie Kenyon
“We have spoken to Katie’s family today and they are understandably extremely upset by this latest development and I have officers continuing to offer them support. My thoughts are with them at this time.
“I am really grateful for all the help that members of the public have given us so far and I would continue to appeal to anyone who has any information, however small, to come forward and speak to us. While we do have someone under arrest our enquiries are very much ongoing.
“We are continuing to search a number of different locations in connection with this investigation, including at Gisburn Forest and I am grateful to colleagues from Merseyside and North Wales, and other emergency service partners who are offering assistance in the these complex and wide-scale searches.
“I am aware that many members of the public have offered to help us in those searches and while I am grateful for that I would dissuade anyone from doing so. The area we are searching is very large and remote with no phone signal.
"The police teams are trained professionals who are used to doing this sort of work and I would hate for someone to get lost or come to harm while trying to help. Please leave it to us.”
Detectives made a further application to Burnley Magistrates' Court to continue the man's detention until 9pm on Wednesday, April 27.
Wednesday, April 27
More than sixty officers and rescuers will today resume their search for missing Katie Kenyon after a man was arrested on suspicion of her murder.
The search teams include trained search officers from Lancashire, North Wales, Merseyside and Greater Manchester, with specialist dogs, a plane and other specialist search equipment being used.
READ MORE: More than 60 officers and rescuers continue in search for missing Katie
The Salvation Army has also provided a feeding station for officers.
Andrew Burfield was charged with the murder of Katie Kenyon late on Wednesday.
Thursday, April 28
Andrew Burfield made his first appearance in court, at Blackburn Magistrates' Court, after being charged with the alleged murder of Katie Kenyon.
The search for the 33-year-old's body is ongoing with police still scouring countryside around the Forest of Bowland for her.
Friday, April 29
Andrew Burfield appears in Preston Crown Court via video link. His case has been set for trial in November, with his next hearing due in August.
Detectives continue to appeal to anyone who was in Bolton-by-Bowland, Gisburn Forest or that area and may have seen Katie, either in company or on her own, or who saw or has dashcam footage of a van matching the description to come forward and contact them by calling 101.
As soon as we have any further updates from the police we will bring them to you.
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