UPDATED APRIL 13: This story has been updated with more information about the theft, including that the girl’s mother had left the keys inside the pickup.

Gresham police said a 3-year-old girl who was sleeping inside a pickup truck when a thief drove off with it Saturday was found a short while later “OK” and in “good spirits.”

The white, 4-door pickup with a “Baby On Board” sticker affixed to its back window was stolen Saturday morning from the area of Southeast 182nd Avenue and Division Street. The girl’s mother had parked the car outside a laundromat and was inside the business when she saw the pickup stolen, said Officer Ben Costigan, a Gresham police spokesman.

The mother had left the keys inside the pickup but it wasn’t running. She later didn’t give police a reason for that, Costigan said.

“She was very distraught and difficult to get information from, understandably,” Costigan said in an email to The Oregonian/OregonLive Monday.

Police didn’t charge the mother with any crimes.

Saturday morning, police had put out a plea over Twitter -- asking any member of the public who’d seen the pickup to call 911. A short while later, police tweeted “Great news! We located the pickup abandoned nearby! The little girl is OK and back with mom!”

Police also posted a photo of two law enforcement officers apparently comforting the girl. One of them -- a Multnomah County Sheriff’s deputy -- held a stuffed animal bear in his hand.

Gresham police thanked the Sheriff’s Office and the Portland Police Bureau for their help in locating the pickup.

“She was in good spirits and very happy to be reunited with her mom,” another tweet said.

Police Monday said they are still looking for the thief.

-- Aimee Green; agreen@oregonian.com; @o_aimee