The search for an Australian woman who went missing in Cape Breton Highlands National Park near Chéticamp, N.S., has been suspended.

Chris Bellemore, president of Cheticamp Search and Rescue, said RCMP told emergency workers and volunteers to stand down on Sunday, six days after their gruelling efforts to find Denise Ann Williams began.

More than 100 people have been looking for the 62-year-old, who was reported missing April 28 in “some of the most challenging terrain in Nova Scotia,” Bellemore told CBC’s Information Morning Cape Breton on Monday.