The bus was bringing the group home from a summer Bible camp when it overturned, the Toronto Star reported. The crash occurred at a highway intersection near Bradford-West Gwillimbury, about 30 miles north of Toronto.
Constable Graham Williamson of the Ontario Provincial Police said many of the passengers were hurt, but there were no life-threatening injuries. The bus was severely damaged, and extricating the people took some time.
Highway 400 was closed for several hours while the bus was removed.