The Canada Border Services Agency says its officers seized 100 bundles of suspected cocaine at Toronto Pearson International Airport in January from an airplane arriving from Mexico.

The bundles, in the shape of bricks, were found inside cardboard boxes in two large wooden crates on the aircraft's cargo. The 100 bundles weighed close to 118 kilograms.

The agency says officers were doing a routine cargo examination of the plane on Jan. 17 when they decided to inspect a shipment further. The shipment was taken to CBSA offices, where officers discovered the wooden crates.

Officers opened the cardboard boxes inside the crates, pulled out one of the brick-shaped bundles and cut into it. The bundle contained a white powder. The officers then did a full inspection of the crates.

CBSA says the suspected cocaine has been handed over to the RCMP.

A Toronto police source says the seizure could have a street value of more than $4.5 million. The source said the going rate for a kilogram of cocaine in Toronto is around $40,000, depending on purity. 

The agency says its officers made 149 cocaine seizures in the Greater Toronto Area in 2015, with the total amount weighing close to 700 kilograms.

Anyone who sees or has knowledge of any suspicious cross-border activity is urged to contact the CBSA Border Watch Toll-free Line at 1-888-502-9060.