Updated

Authorities in Southern California have arrested a woman accused of trying to sell a moon rock for $1.7 million.

The Riverside County sheriff's department says the woman was arrested Thursday during an undercover meeting at a Lake Elsinore restaurant where she showed the rock for an undercover NASA investigator. The rock has been recovered.

Moon rocks are considered national treasures that cannot be sold.

Authorities say NASA had been investigating the case for several months.

Authorities haven't released the identity of the woman or details on how she obtained the rock.