The Winnipeg Police Service wants the public's help in identifying three people in the area where Thelma Krull was last seen on July 11.

Police released three images of people near the Valley Gardens Community Club and Kildonan East High School.

They want to ask the people if they saw anything.

Thelma Krull disappeared on July 11 while on a hike.

She was supposed to meet her husband and attend their grandson’s birthday, but she never arrived.

Police said her disappearance raised red flags from the start.

Police said they have pieced together a timeline of Krull's movements between 7:30 and 10:30 a.m. on July 11, but after that the trail goes cold.

Police have received more than 100 tips in relation to the case, but they said none of them have moved the case in the direction they want.

Police are still asking anyone with surveillance video to review footage between 7:30 and 10:30 a.m.

They want to review any images of people in the area.

Anyone with information can contact investigators at 204-986-6508 or Crime Stoppers at 204-786-8477.