OTTAWA - Transport Canada says it has grounded the airline that operated the plane that crashed in northern Saskatchewan earlier this month.

A West Wind Aviation ATR42-320 with 25 people on board went down on Dec. 13 shortly after taking off from the Fond du Lac airstrip.

Everyone survived, but seven people were seriously injured.

Transport Canada says it has suspended the airline's operator certificate, citing deficiencies in the company's operational control system.

It says such systems ensure a company is following safety rules for dispatching staff and aircraft.

West Wind says it has received the order but had already voluntarily suspended all flying operations.