Imperial Oil shut down a key fuel pipeline for an anticipated three months and set up temporary channels to customers supplied in the Winnipeg region, the capital city of the Manitoba province in central Canada.

The Winnipeg Products Pipeline moves gasoline, diesel and jet fuel in the region. Imperial owns and operates the line, while third-parties also have access to capacity. The line runs from the U.S. border north to Winnipeg region.

The provincial government said no liquids were spilled in the shutdown. Imperial Oil said in a statement that it was conducting unscheduled preventive maintenance on the line and had started sending the pipeline’s products through other routes.

“Imperial is leveraging its extensive supply network and working around the clock to minimize customer and consumer impacts,” the statement said. “This includes arranging alternate forms of transport through truck and rail to continue to move fuel to the region and identifying other terminal locations for customers to pick up product.”