Dutch customs seized the largest shipment of heroin ever found in a raid on the country this month when they discovered more than 1.5 tonnes of heroin in Rotterdam, officials said.

“The drugs were found by customs officers in a container full of Himalayan salt from Pakistan,” the Rotterdam prosecutor’s office said in a statement.

The value of the drugs is estimated at around 45 million euros

There, it is added that the Dutch authorities worked closely with the British National Forensic Service on the seizure. According to the Dutch, the value of the seized drugs is estimated at around 45 million euros.

Dutch authorities have arrested five suspects, three of whom remain in custody.