TEHRAN, Sept. 10 (UPI) --
At least 43 people died and 39 were injured when two buses collided on a highway connecting Tehran and Qom, police and medical officials said.
Officials said the collision Monday was so forceful that a fire broke out and trapped some victims inside the burning buses, Iran's government-backed Tasnim News Agency reported Tuesday.
One Iranian official said the crash's likeliest cause was defects in the vehicles' electrical systems.
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