Addressing reporters, Perm Krai Governor Oleg Chirkunov said he believed the roof of the Chusovoi municipal swimming pool collapsed as a result of safety violations.
"As far as I can determine, this emergency situation was caused by violations during either construction, or maintenance, or both," Chirkunov said. "It is the metal arches that were holding [the roof's] concrete slabs that collapsed."
Authorities say 14 people -- including 10 children -- were killed in the accident. Another 11 people sustained injuries.