Dozens of boxes containing 2,000 kilograms of Ketamine have been discovered in a shed in Muideberg, a village east of Amsterdam, with a street value of tens of millions of euros.

“This is the largest amount of ketamine ever found in the Netherlands,” police say.

Acting on a tip, the police raided the property and arrested a 55-year-old man, who lives in a house on the premises. Two children were also found and brought to an emergency shelter.

The police removed the Ketamine, along with several kilograms of hard drugs, and destroyed them, it said in a statement. It is estimated by the police that the stash has a street value of almost €55 million.

Trading Ketamine without registration can be punished by up to six years in prison in the Netherlands. According to the police, trafficking is “accompanied by other forms of crime, such as money laundering and weapons possession.”