The older sister of a Northern California mother who was missing for three weeks says the return of her sibling made for the best Thanksgiving ever.

Sheila Koester said Friday she is "very thankful and ecstatic" about the return of her sister Sherri Papini.

Authorities have released few details about what happened to Papini.

Koester says she does not know what happened to her sister during the three weeks she was gone or the details of the police investigation.

She said she reunited with Papini and is giving her space and time with her husband to heal.

Police say the 34-year-old Papini was found early Thursday bound by restraints near Interstate 5 in Yolo County after she flagged down a driver.

Authorities are looking for two armed women they believe abducted Papini while she was jogging on Nov. 2 near Redding.

Papini was treated for unspecified injuries and released.