Quick and dirty translation of the above referenced article:
A helicopter carrying five people crashed today around 13:00 near North Sea Boulevard in Rotterdam.
According to police, four of the five on board have lost their lives. A total of five people were on board; four passengers and one pilot.
The accident occurred around 13:00 in an area near North Sea Boulevard. The cause of the crash is as yet unknown.
According to a police spokesperson, various services responded to the crash: "Aviation Police units, Coast Guard, Port Police, an EMS helicopter and of course the Rotterdam Police".
The Dutch ATC have no information on the accident: "The aircraft was not under ATC control" according to an ATC spokesperson.
The aircraft was owned by Heli Holland Services. It was a Eurocopter EC130. This was confirmed today by Heli Holland Services.
The aircraft in question is a turbine helicopter, built five years ago. According to a Heli Holland Services spokesperson, this is quite new by aviation standards. Heli Holland Services is one of the few companies in Holland offering helicopter services.
The helicopter took off from Rotterdam The Hague airport. The Dutch NTSB has started an investigation. The Aviation Police unit will remove the wreckage of the crashed aircraft this Sunday evening, relocating it elsewhere for further investigation, according to a police spokesperson.