Nicola Bulley's sister has urged members of the public to continue sharing the appeal to bring her home as the search enters its third week.
Family and friends of the missing dogwalker have been posting yellow logos on social media pages to help raise awareness of the 'Bring Nikki Home' campaign – and get witnesses to come forward with vital clues.
Ms Bulley's sister, Louise Cunningham, took to social media on Saturday to share the logo alongside three yellow hearts and a home emoji, writing: "Please keep sharing."
One person commented: "Sending lots of love and hoping and praying for your beautiful sister's safe return."
Another wrote: "Sending you all hugs and praying for Nicolas safe return, always thinking of you all."
And a third added: "Constantly thinking of you and your family Louise. I know that can't change anything but just so you know there's love and support behind you all on this journey to finding Nikki."
In an update 10 days ago, on February 3, Ms Cunningham cast doubt on Lancashire Police's hypothesis that her sister had fallen into a river.
She wrote: "Please keep sharing my Nikki…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.
"Everyone needs to keep an open mind as not all CCTV and leads have been investigated fully, the police confirmed the case is far from over."
Her latest comments come as friends and family leave yellow ribbons with handwritten messages on a bridge close to where Ms Bulley disappeared.
The mum-of-two vanished on January 27 while walking her springer spaniel Willow in St Michael's on Wyre in Lancashire, shortly after dropping her daughters, aged six and nine, at school.
Ribbons with messages including "We need you home Nicola", "praying for your safe return" and "I love you" have been tied to a footbridge over the River Wyre.
A large poster with a photograph of Ms Bulley has also been attached to the railings.
Lancashire Police are continuing to trawl the River Wyre towards the sea at Morecambe Bay, working on one hypothesis that Ms Bulley could have fallen in.
The search has been aided by specialists and divers from HM Coastguard, mountain rescue and Lancashire Fire and Rescue Service, with sniffer dogs, drones and police helicopters.
Ms Bulley's partner, Paul Ansell, said he wants to keep "all options open" about her disappearance, but his "gut instinct" tells him she is not in the river.
He described Ms Bulley as "fun", "loving", "the most loyal friend you could ever have" and an "exceptional mum" who "absolutely adores our girls".
