Lisa Besser, the daughter of missing Thelma Krull, announced a larger reward for information on her mother’s disappearance Friday. 

“Please someone must have seen or known something,” Besser said online. “Even if you think it’s not important, phone in anything suspicious you may have seen that morning. It could seem small, but could be the link to help find her.”

Krull, 57, went missing while on a walk the morning of July 11 in the area of East Kildonan by Kimberley Hill.

The reward for information is now $20,000; double the initial amount posted a month ago.

The money came in four equal parts from friends and family, the amalgamated and international transit unions along with proceeds from the "Whistle for Thelma" campaign.

Besser said she last spoke with police a few days ago and officials are getting tips on a regular basis; however, nothing that has yet led to Krull being found.