Donna O'Rielly, 54, was last seen leaving Highfield Square Mall on Feb. 26 at about 8 p.m. (Photo submitted)

The Codiac Regional RCMP are making a new plea to track down a Moncton woman who has been missing for three weeks.

Investigators still don't know what happened to Donna O'Rielly, 54, but if she's safe, they say that's all they need to know, no questions asked.

Staff Sgt. Marc Bertrand, the lead investigator in the O'Rielly case, said the police are still considering her disappearance as a missing person's case but they also have to pursue other possibilities.

"If Mrs. O'Rielly is listening out there and is wondering, 'If I come forward' and identify where she is, we can meet with her and we can determine that she is safe and secure and is where she wants to be," Bertrand said.

"And if her wish is not to advise the family, her family where she is, we can't tell the family that."

Bertrand said the police would tell the family, and the public, that she has been located and is safe.

O'Rielly was last seen leaving Highfield Square Mall in Moncton on Feb. 26 at about 8 p.m.

Her car was left behind in the parking lot. O'Rielly's family believes she was abducted.

Police have received more than 600 tips from the public, but Bertrand said investigators are still at a loss to say what happened to O'Reilly.

Similar cases before

Bertrand said he has seen cases before where a person who disappeared may also be hesitant to come forward because they're embarrassed by the investigation and the attention or out of fear of legal consequences.

"The issue is not to judge the reasons why this was done. For us, it is to locate her. Once we have it and we are confident she is where she wants to be and everything is OK, we end our investigation," Bertrand said.

"Now if something was done wrong we will investigate that aspect of it as well. There are cases we've done in the past and it has been months where people finally come forward and say, 'Here is where I am.' And we determine they are OK, it ended our investigation because there is nothing wrong."

O'Rielly grew up in Isle aux Morts, in southwestern Newfoundland and Labrador. She and her husband Harold raised their family in Gander, N.L., and they moved to Moncton in 2004.

O'Rielly is five feet three inches tall and 130 pounds, with green eyes and shoulder-length brown hair.

She was last seen wearing a brown medium-length, suede-like jacket and jeans. She was also carrying a brown purse and a lunch bag.