(CNN) — Two people died after reportedly falling more than 50 meters (164 feet) from the 7-story building in which they were staying in Arlanda, near Stockholm, Sweden, according to local police.
It comes ahead of the main ABBA tribute concert scheduled for Saturday in the Swedish capital.
Local media reports that the two, a woman in her 50s and a man in his 30s, appeared to have been in the stairwell of the building.
Visibility in the area, which includes a ski slope, was likely affected by the absence of winter precipitation, Arlanda Mayor Linda Pedersen-Binck told local TT news agency.
“It’s very dark down there at night and there is no street lighting,” she added.
Search operations resumed for an hour after the events, though it was unclear whether the two were found within or outside the building.
The police were releasing no further information, except that the incident is being investigated.
Earlier, the show’s organizer told a press conference that the event would go ahead as planned.
“The police have told us it has nothing to do with our event,” Peter Notare said.
“There were no suspicious circumstances, the death didn’t happen during the course of the concert. The last time they used the lift was about 12:30 pm.”
The event had been scheduled to take place at the Olympic Stadium in Stockholm, not far from the site of the accident.
The 56th Swedish National Concert celebrates the music of the Swedish pop band ABBA.
The performers include the original band members, Benny Andersson and Bjorn Ulvaeus, as well as their former bandmates Agnetha Faltskog and Anni-Frid Lyngstad.
The band has been performing almost continuously since the late 1960s. The group consisting of the four female singers was formed in Stockholm in 1975, and went on to sell more than one billion records.
“This is your home — you came in, don’t leave. Everything is all right, people,” the ABBA tribute band posted on Twitter after news of the accident surfaced.
“We have an idea of how to continue without you,” the band added in another tweet.