Police said Wednesday that they will announce this week the tentative results of their investigation into a gymnasium collapse that killed 10 people and injured 105 others.

The roof of the gymnasium at the Mauna Ocean Resort in Gyeongju, a historic tourist city 370 kilometers southeast of Seoul, caved in on Feb. 17 while some 560 incoming freshmen from the Busan University of Foreign Studies were holding a welcome party inside the building.

"The tentative results of the investigation will be released on Friday," a police officer close to the investigation told a press briefing.

After holding a joint on-site inspection with structural engineers and studying an architectural blueprint of the building for the past 10 days, police obtained evidence suggesting that structural flaws were partly to blame for the tragedy.

Initially, snow that had piled up on the roof was blamed for the collapse. Hit by severe winter storms, the Gyeongju area received more than 50 centimeters of snowfall around the time of the accident. (Yonhap)