Mother in B.C. Amber Alert case seen in Kamloops last weekend, may be accompanied by 2 men

SURREY, B.C. -

Update: The two children who were the subject of a July 19 Amber Alert have been found safe.  

Mounties say the suspect in an ongoing B.C. Amber Alert was seen grocery shopping in Kamloops last weekend – and that she may be accompanied by two men.

On Thursday, Surrey RCMP released new images of the mother and the truck and trailer she is believed to be travelling in.

In surveillance video from the Kamloops grocery store where the mother was seen on July 15, the children are not present, police said.

Cpl. Vanessa Munn said the suspect is also "likely travelling with two additional males" – her father and boyfriend.

"They are believed to be in possession of an additional trailer – a large travel trailer," Munn told reporters at a news conference Thursday afternoon.

Police said they are concerned for the mother's mental health and her ability to care for the children.

"Through the investigation, police made a determination that there was an imminent risk to the safety and wellbeing of (the children)," Munn said.

Mounties say the kids went on a planned vacation to the Okanagan with their mother on June 28. The children were seen two days later at Krafty Kitchen + Bar in Kelowna, then again passing through the Merritt area on July 7 – but have not been spotted since.

Munn said they have no reason to suspect the mother and children have left the province, but will be "continuing to follow all investigative avenues."

Speaking on Wednesday, Munn said police "believe that the mother is actually taking active steps to prevent the return of the children to their primary parents."

She was supposed to return the children to their father – who's their primary caregiver – on Monday, but didn't.

No one has been able to contact her since.

Police did not specify where in Kamloops the surveillance photo was taken, but said investigators have been able to confirm the photo is of her.

The Surrey RCMP Serious Crime Unit has taken over the investigation and is working with Kamloops RCMP, police said.

Anyone who spots the family is advised not to approach them, but to instead call 911.