Nobody was injured in the incident in the town some 50 kilometres north of Amsterdam, a police spokesperson said in a radio interview.
A metal pipe at the centre exploded shortly before 7a.m (0600 GMT), causing five windows to burst.
At the time, only a guard was present at the site,who was not injured.
Prime Minister Mark Rutte condemned the suspected attack as` totally unacceptable.’
Health Minister, Hugo de Jonge called the incident “crazy.’’
Police were reportedly investigating the incident and looking for any further explosives. (dpa/NAN)