Border officers in Vancouver made a large seizure of cocaine after uncovering 130 kilograms in bricks hidden in the ceiling of a shipping container from Russia.

Faith St. John, speaking for the Canada Border Services Agency, said officers determined something was off when they used a high-energy X-ray mobile cargo screening system to scan the container and its contents.

"Officers noticed irregularities in the ceiling, and when they pulled the ceiling back they discovered bricks affixed to the roof of the container," she said.

"In total, 109 bricks containing an unknown substance were removed from the roof of that container and laboratory tests later confirmed that that substance was, in fact, cocaine."

Shipping documents described the refrigerated container's contents as 25,000 kilograms of food.

St. John said the discovery was made at Vancouver's port at the end of September, but details were only released on Friday because the investigation progressed sufficiently to allow the agency to make some details public.

With files from the CBC's Emily Elias and Robert Zimmerman