The Scottish Ambulance Service said it was treating four passengers for chest and hip injuries.
Strathclyde Fire and Rescue said it sent three appliances to the scene.
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A doctor who lied and recorded a lower temperature for Ebola nurse Pauline Cafferkey on her return to the UK has been suspended for a month.
Emergency services were alerted to the crash at 3.50pm on Thursday, Sussex Police said.
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