British Columbis safety regulator cites extended police criminal probe for keeping secret results of its probe into one of North America's deadliest crane collapses that in July 2021 killed four site workers at a 25-story condo project and an engineer in an adjacent building.

Seven-year consultant employee in adjacent building was hit by collapsed equipment that fell during July 12 dismantling at Kelowna, B.C., site, with four contractor workers also dead; crane counterweight removal now is underway.