BOISE, Idaho -

Three medical marijuana advocates from southwest Idaho say their children were placed into state foster care after law enforcement searched their home and found marijuana.

KTVB-TV reports when Lindsey and Josh Rinehart came home from a trip last week, their babysitter was home but their two sons were gone.

The Rineharts and Sarah Caldwell -- who also had two sons placed into foster care -- are members of Compassionate Idaho, a group focused on legalizing marijuana for medical uses.

No charges have been filed, but authorities say all three are being investigated for drug trafficking and possession.

Lindsey Rinehart denied the claims, adding said she has multiple sclerosis and uses cannabis to treat her illness.

But she says she intends to quit in hopes of getting her sons back.