Divers entered the lake at Birds Hill Provincial Park for a “precautionary search” on Wednesday afternoon.
Emergency crews arrived at the beach at around noon. The STARS air ambulance was also called in, along with the Oakbank fire department.
A tweet by the Manitoba government said bubbles were spotted, but no one was reported missing.
The swimming area was completely cleared of beach-goers and a path on the beach was opened to allow for emergency personnel easy access to the water.
Emergency crews searched the area with nets before linking arms and walking in a line.
Officials also canvassed the campground to ensure all campers were accounted for.
Shortly before 4 p.m., the government said a grid search had been completed and RCMP would sweep the lake before concluding the search.
The search was called off at around 6 p.m.
Searchers continue to look … pic.twitter.com/lHX5rIyM5h
— Nathan Liewicki (@liewicks) August 17, 2016
Grid search of water at Birds Hill Park complete, RCMP underwater recovery team will sweep lake before search is concluded.
— Manitoba Government (@MBGov) August 17, 2016
Updated at 6:21 p.m.