TEHRAN, Dec. 23 (UPI) -- Iranian officials say a tired driver may be to blame for a bus crash that killed seven university students returning from a pilgrimage.
The crash occurred late Friday near Damhgan, east of Tehran, PRESSTV reported. The bus was returning from the holy city of Qom.
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At least 29 people were injured, three of them critically.
Officials say that driver fatigue appears to be the cause.