Canadian apparel manufacturer, Gildan Activewear, has today confirmed that it has closed one of its sewing plants in Barbados following the discovery of a significant amount of marijuana in a shipment bound for the US.

Gildan, one of the largest t-shirt manufacturers in the world, announced the closure of the plant following an investigation into the drugs, which revealed that the drugs were likely to have been planted in the container after it had left the Gildan plant and possibly after it had left Barbados.

In a statement the company stressed that it had a "zero-tolerance policy on drugs or any illegal acts or breaches of its stringent security and safety procedures".

It also revealed that the primary motivating factor in its decision to close its Barbados manufacturing operation is its inability to ensure that its internal procedures will be adequate to cover risks during trans-shipment from Barbados to the US and not because of any wrong doing within the plant.

The closure of the plant has left around 50 workers without jobs.