The Department of Fisheries and Oceans says it's aware of an entangled North Atlantic right whale on the north shore of the St. Lawrence River estuary.
It says the whale was spotted in the Saguenay-St. Lawrence Marine Park on Tuesday from a vessel in the area.
The department says officials are trying to find the whale and that they'll try to free it if weather and sea conditions allow.
The public is being asked to avoid approaching any rescue effort.
Officials say they don't yet know what type of gear the whale is caught in or where the gear came from.
They added that they're looking into whether this is a new or a previously known entanglement.
North Atlantic right whales are critically endangered, with fewer than 400 remaining in the wild.
This report by The Canadian Press was first published May 28, 2025.
The Canadian Press