A minibus taxi driver died on Tuesday morning after a heavy motor vehicle crashed through an accident scene, Western Cape traffic chief Kenny Africa said.
Two taxis collided head-on on the N1 near Laingsburg around 05:00, he said.
"In a secondary crash a heavy motor vehicle ploughed through the crash scene allegedly killing one of the taxi drivers."
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He said seven others were slightly injured.
Both lanes were closed for traffic.
"We will do everything in our power to reopen the road as soon as possible."
According to Road Traffic Management Corporation's National Road Safety Strategy 2016 - 2030, vehicle factors make up 14.1% of fatal collisions, while human factors account for 73.6% of fatalities on the roads. The road environment accounts for 12.3%.
The RTMC's State of Road Safety Report: Calendar for 2018 found that minibuses accounted for 9% of crashes, and most collisions happened on Saturdays (25%) and Sundays (22%).
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Accident scene on the N1 (Supplied by Kenny Africa)