A search also took place on Tuesday evening, after the emergency services were warned by visitors to the pond around 9 p.m. They had seen someone swimming behind an air mattress. That person then disappeared under water.
The police managed to find the group that the missing person belonged to on Tuesday evening. According to a spokesperson, it was a group of Polish people. That group confirmed that one of their friends had not resurfaced.
Police have yet to identify the person found.