Subscribe | UPI Odd Newsletter Subscribe UMEA , Sweden, Feb. 11 (UPI) -- Swedish police said they broke down the door of a hostel after hearing what seemed to be a woman's screams, only to discover an opera singer was practicing. Police in Umea said they became suspicious after a man who appeared to be loitering outside of the Gamla Fangelset hostel late Friday eventually used a door code to enter the building, and a sound that resembled a woman's high-pitched screams was heard shortly after the man went inside, Swedish news agency TT reported Wednesday. Advertisement "They thought somebody in there was in distress and made a decision to raid the premises," police spokesman Peder Jonsson said. However, when the police broke down the door and entered the building, they discovered members of a South African choir cooking food in the hostel's kitchen. A representative from the hostel soon joined the singers and explained to police that the high-pitched sound had been a female member of the choir practicing for an upcoming performance at the Norrlandsoperan opera house. Police said the officers left the building after determining that no crimes had taken place.