Police are still searching for two young siblings in Canada after they vanished from their home nearly six months ago.

The Royal Canadian Mounted Police (RCMP) previously said that Lilly Sullivan, 6, and Jack Sullivan, 4, had last been seen on the morning of May 2, on Gairloch Road in Lansdown Station, Pictou County, in Nova Scotia. Authorities believe the two wandered from their home.

Months later, authorities are offering a reward of up to $150,000 CAD (around $107,000 USD) for any information about the siblings’ disappearance, per a Nova Scotia government post.

Malehya Brooks-Murray, the children’s mother, has been sharing multiple messages on a Find Lilly and Jack Sullivan Facebook page amid the ongoing search.

She wrote on Oct. 13, “As a mother I love my children more than life itself and feel so heart broken [sic] not being able to hold my two children Lilly and Jack, kiss them, breathe in their scent or tuck them in to bed, dress them, wake up to their sweet smiling faces.”

“The longing I have for them to come home back to me is a greater feeling than I could never imagine feeling or put into words how I am feeling. There is not one single day, minute or second that goes by that I am not thinking about my children,” Brooks-Murray added.

She insisted she “desperately” wants her children “home safe and sound, back into my arms where I will never let them go,” adding that she’s “truly [traumatized]” that she hasn’t been able “to hear the sweet sound of their voices.”

“Not being able to breathe in their scent when I embrace them tightly. I don’t want these moments to be memories, I want my babies home. My Lilly Mae and Jacky. The pure pain I suffer of just not knowing where they are has impacted my life and M and my family in the most devastating way,” Malehya Brooks-Murray continued.

“Life feels extremely hard to keep going. With no answers it is just pure lostness, like I can no longer feel at home anymore. No matter how lost I feel I have not given up hope that my children will be returned home to me safe and sound. I have all the faith and hope I will see them again,” she shared.

“I will never stop searching for my children until they are found and brought home safe and sound. Someone, somewhere, knows something so please bring my babies home,” Brooks-Murray wrote, urging anybody with any information to get in touch, as well as thanking those that have helped amid the search so far.

Another post on Sunday, Oct. 26 confirmed that Jack was going to be turning 5 years old on Wednesday, Oct. 29, adding that a candlelit vigil would be held to mark the occasion at Stellarton RCMP Detachment.

The message came after Nova Scotia RCMP said last week that they’d found no evidence to back up previous witness accounts of a vehicle driving back and forth near the home around the time that the two children went missing, The Canadian Press reported.

Spokesperson Cindy Bayers said on Tuesday, Oct. 21, that police “found no evidence of any vehicle activity at that time. As such, no driver has been identified, and the presence of a vehicle has not been substantiated as a key element in the investigation,” per the outlet.

The witnesses, who are residents of Lansdowne Station, had reported hearing a vehicle, but hadn’t been able to visually confirm it, The Canadian Press reported, citing Bayers.

Daniel Martell, the stepfather of Lilly and Jack, previously said he suspects the two children got out of a sliding back door as he and the children’s mother were in their bedroom with their 1-year-old daughter, the Canadian Broadcasting Corporation (CBC) reported in May.

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Martell also said he believed Lilly and Jack were kidnapped, but the RCMP said there was no proof that this occurred, the CBC added at the time.

Earlier this month, Martell told The Canadian Press that previous claims suggesting his vehicle might have been heard driving back and forth late at night around the time the children were reported missing were “complete nonsense.”

Nova Scotia RCMP shared an update on Oct. 8, stating that a search around Lansdowne Station and the property from which the children went missing in late September didn’t result in authorities finding human remains.

Staff Sergeant Rob McCamon, Officer in Charge (acting) of Major Crime and [Behavioral] Sciences, said at the time, “There are multiple aspects of this investigation ongoing simultaneously,” adding, “Each piece of information, including the results from the search teams, helps inform our next steps. With support from agencies across Canada, the investigative team is working to validate or eliminate leads and follow the evidence wherever it takes us,” per the release.

“At this stage, and as we’ve said all along, we’re considering all possibilities. We’ll keep going until we determine, with certainty, the circumstances of the children’s disappearance and they’re found,” the officer added.

Nova Scotia RCMP did not immediately respond when contacted by PEOPLE for additional information. PEOPLE has also attempted to contact Malehya Brooks-Murray.