Four men on Monday drowned on the Dutch North Sea coast, due to strong winds and currents, rescue authorities said.
According to the rescue brigade, tropical temperatures contributed to dangerous currents and strong winds, resulting in a very treacherous sea.
Authorities had previously imposed a ban on swimming along the Northern coast for a stretch up to South of The Hague.
Two men aged 24 and 28 died by the beach at The Hague. Two other men, one in his late fifties and one in his early twenties, drowned in Wijk aan Zee and Zandvoort, respectively.
The men were rescued from the water but resuscitation attempts failed.
Meanwhile, rescue authorities said that 270 people were rescued on Sunday in total, out of which 59 received first aid.
According to rescue authorities, many ignored the swimming ban and entered the water with inflatable mattresses. The beach crowds further complicated the rescue efforts.