Two other deaths, in the northern German state of Saxony, are possibly linked, police said Monday.
The revelations began on Saturday morning when an employee at a quiet inn on the river Ilz near the southern German town of Passau discovered the bodies of two women and one man after repeated knocks on the door of their hotel room failed to get a response, the Associated Press reported.
The bodies of a 53-year-old German man and two German women, aged 33 and 30 were discovered, according to Passau Police. The man and 33-year-old woman were found lying together in bed, while the younger woman was found lying on the floor.
Police are still investigating the relationship between the trio. The older man and woman lived in the Southern German state of Rhineland-Palatinate, while the younger woman had a residence in Wittingen in Northern Germany.