A sinkhole has forced police to close a highway in northern Alberta.

RCMP in Desmarais first learned about the hole on Highway 754 around 7 a.m. Monday.

Initially, they closed one lane of traffic because it was under the northbound lane.

However, the hole has since expanded under the entire road, leading police to close the highway.

People travelling to Wabasca are advised to take Alpac Road to Highway 813 and then continue north.