Large synthetic drug lab discovered in The Hague residential street, 150 evacuated twice in 24 hours

Discovery

On Friday afternoon, 17 July, a resident of Meidoornstraat in The Hague's Segbroek district called emergency services about a strange, sweet smell. Police and fire brigade arrived without sirens at around 13:42 and entered an unremarkable commercial building with a floral mural. Inside they found a fully operational synthetic drug lab containing thousands of litres of chemicals in barrels. Neighbours later recalled a white van that entered each morning and left late at night, and an unusual number of cameras on the façade, but no one had suspected drug production. "We thought at first that someone had fallen from the building," said a woman living in the adjacent former school.

Evacuations and disruption

Within hours, authorities evacuated dozens of homes, affecting between 150 and 200 residents. Sinéad Branagan, who lives in the converted school next door, was given seven minutes to pack.

We got seven minutes to pack our bags. You become aware of how fragile life is.

Residents were taken to a reception centre at the district office on Fahrenheitstraat. By 22:30, the lab had been pumped empty and the situation was declared safe, allowing people to return. But on Saturday morning, a second evacuation was ordered for the same households: they had to leave by 13:00 and were told they could return around 22:00, while all remaining equipment and substances were removed from inside the building. A safety region spokesperson described it as a "mega-operation" requiring trucks to haul away large quantities of raw materials.

A drug lab of this size you normally don't find in a residential area.

One woman, arriving to visit a friend, asked a heavily armed officer: "Is this fake or real?" He replied: "It's real."

Arrests

Four men were arrested. The first was a 39-year-old from The Hague who was inside the lab when police entered; he slipped in the chemical liquids and was taken to hospital for checks before being detained. Later on Friday, a 34-year-old from Voorburg was arrested, followed by a 44-year-old from The Hague and a 71-year-old from Leiden. All are suspected of involvement in the drug production. Police cordoned off the area with black screens and deployed heavily armed officers while investigations continue.

Dismantling and chemical risks

The fire brigade warned that the production process carried a serious explosion risk.

At a certain temperature you can make pills from it, but at another temperature it can explode.

On Friday evening, specialists removed 500 to 750 litres of hazardous substances from barrels stored outside. The remaining chemicals, still reacting in six or seven barrels, were rendered safe by pumping them out. On Saturday, a specialised company worked alongside police to clear the interior, with the city warning that dangerous substances could be released during the operation. Residents were asked to move their cars and take pets with them.

A growing pattern of urban drug labs

The discovery fits a wider trend. De Volkskrant reported that synthetic drug labs are increasingly found in residential neighbourhoods, replacing cannabis plantations which are more often smuggled from abroad. Such labs pose direct dangers from fire, explosion, and inhalation of toxic fumes.

It is unusual to discover such facilities in a residential area.

The Meidoornstraat case is the latest in a series of urban drug lab finds. The investigation into the exact type of drugs produced (possibly ecstasy and MDMA, according to De Volkskrant) is ongoing.