Nobody was injured in the blast which damaged a coronavirus testing centre
An explosion blew out the windows of a COVID-19 testing centre in the town of Bovenkarpsel in North Holland, Dutch police said on Wednesday.
No one was injured in the blast, which occurred just before 7am police said.
Dutch police added that they had cordoned off the area and were investigating the explosive and its origin.
A bomb squad was sent to see whether any explosive material remained at the scene, public television network NOS reported.
For the moment, we are not ruling out any leads and cannot yet say anything about the motives, an investigation is under way, Menno Hartenberg, a spokesman for the North Holland police, told AFP.
The device, a metal object which is located between a tube and a can, was placed there and exploded near the front of the screening centre, he added.
Angry citizens who hate the system: Why the riots in the Netherlands go beyond a COVID curfew
Dutch police out in force to prevent further anti-lockdown rioting.
In January, a coronavirus testing centre in the nearby town of Urk was set on fire by rioters opposed to the country’s lockdown.
The lockdown measures sparked protests and civil unrest throughout the Netherlands, including clashes between riot police and protesters in Amsterdam in several other cities, where looting occurred.
Dozens of people were arrested.
The curfew, in force from 9 pm to 4.30 am until at least 15 March, is the first in the Netherlands since the Second World War.
It was ordered to be stopped last month by a court in the Hague, which said the government had abused its emergency powers by implementing it.
But the government appealed and subsequently rushed legislation through parliament to give the curfew a stronger legal backing.