Search continues for two Lil'wat Nation members missing since Thursday near Pemberton, B.C.

A search is underway for a father and son from the Lil'wat Nation near Pemberton, B.C., who went missing after heading out to pick mushrooms Thursday morning.

In a Facebook post, the Lil'wat Nation said River Leo, 21, and Peter Oleski, 48, set out Thursday morning and haven't been heard from since 2 p.m. PT that afternoon.

RCMP and Pemberton Search and Rescue were notified Thursday evening when the two hadn't returned home. A search by community members got underway immediately.

The pair were driving a red 1997 Dodge Ram 1500 truck, which was found near a paragliding launch site north of Pemberton and the Lil'wat community of Mount Currie on Friday.

Community members are continuing the search. RCMP say the Pemberton Search and Rescue team is assisting Stl'atl'imx Tribal Police. The military is helping with flights, while the RCMP helicopter searches by air near the community, located about 150 kilometres north of Vancouver.

On Sunday, RCMP said Lions Bay, Squamish and Whistler search and rescue crews had joined the effort. 

"The search is ongoing and urgent, as temperatures in the area are due to plummet ... this weekend," according to the Facebook post from the Lil'wat Nation.

"It is my deepest hope that River and Peter are safe and that we find them very soon," Chief Dean Nelson said on Facebook.

"I ask that you keep them in your thoughts and prayers."

RCMP are asking anyone in the Mackenzie Basin, Upper Mackenzie Trail and Mackenzie Basin FSR to keep an eye out for Leo and Oleski. 

Anyone with information about their disappearance is asked to contact Stl'atl'imx Tribal Police or Pemberton RCMP.