Hospital surveillance footage showing the last sighting of Allan Landrie. (Courtesy Saskatoon Police Service)

The family of Allan Landrie is disappointed over the length of time it took authorities to find him, his daughter says.

Landrie, 72, entered Royal University Hospital Sept. 28 at 1:30 p.m. and wasn’t discovered until about 9:30 p.m. Oct. 1, Tammi Bryan said in a statement to CTV News.

He had been in a locked public bathroom for four days in the hospital, she said.

“We have a lot of questions and concerns about how this could happen but at this time the family is requesting privacy so that we can grieve the loss of our loved one.”

The preliminary investigation conducted by the Saskatchewan Coroners Service indicates that Landrie died as a result of self-harm, according to a Friday news release from the province. The date of his death was not specified.

The coroners service continues to investigate with the assistance of the Saskatchewan Health Authority and the Saskatoon Police Service, the release said.

In a statement Thursday, vice president of infrastructure, information and support Andrew Will said the SHA is conducting a thorough review over what occurred at the hospital.

If you or someone you know is in crisis, here are some resources that are available.

Crisis Services Canada (1-833-456-4566 or text 45645), Centre for Suicide Prevention (1-833-456-4566) or Kids Help Phone (1-800-668-6868) offer ways of getting help if you, or someone you know, may be suffering from mental health issues.

If you need immediate assistance call 911 or go to the nearest hospital.