Oct. 13 (UPI) -- At least 42 people, including seven children, were killed after a bus in a northern region of South Africa left the road as it was driving over a steep mountain pass and plunged into a ravine.

The crash occurred in Limpopo Province on Sunday night on the N1 highway about 250 miles north of Pretoria, the capital, according to traffic authorities who stressed the casualty figures were not final and could be revised.

An unknown number of injured people in the crash were taken to area hospitals.

Official photos showed an overturned bus with its roof crushed.

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