(CBS) — A Chicago veterinarian who said earlier this week that the puppy she had just adopted from a rescue organization in Minnesota was stolen from her car right in front of her is now admitting it was not true and she says she’s sorry, reports WBBM’s Mike Krauser.

The veterinarian came clean on Friday, admitting the story she told the woman who fostered the dog that he was snatched out of her car at a gas station on the Northwest Side on Tuesday morning was not true.

She called WBBM Saturday after four days of silence. She panicked, she said. She felt guilty about losing the puppy she’d had for only a couple days and needed someone to blame.

She said the dog got away from her near Harlem and Grand, on Chicago’s Northwest Side. He ran across the Metra tracks, she said, and she couldn’t chase after him.

Sara Thompson fostered the dog for Midwest Animal Rescue in Minneapolis.

“He is just such a good puppy and he is very caring and cautious,” Thompson said. “He is just a really great little puppy and I am really hoping that he’s ok and safe. I just want to know that he is ok and safe.”

Anyone who’s seen him or may know his whereabouts, is asked to call the 17th District Chicago Police.

Funds are now being raised by Midwest Animal Rescue and Services in Minnesota, for a reward.