French police have seized 370kg of cocaine with a street value of up to 50 million euros.

The drug, hidden in bags among a delivery of orange juice concentrate, was discovered at a Coca-Cola plant in France. It arrived in a container from South America.

An investigation is under way in Signes, a village in southern France.

The seizure makes it one of the largest finds on French soil.

Toulon prosecutor Xavier Tarabeux said the delivery “has a street value of 50 million euros” and referred to it as “a very bad surprise”.

Employees at the Coca-Cola plant have been ruled out of any involvement as investigators attempt to trace the origin of the drug.

“The first elements of the investigation have shown that employees are in no way involved,” Jean-Denis Malgras, the regional president of Coca-Cola, told local news website Var-Matin.

In April 2015, French customs officers aided in the arrest of two men caught trying to sail a yacht loaded with 250kg of cocaine to the UK.