Kerry Heskith, 24, who works in the Angelfish Cafe next to the crash site, said it was a "miracle" no-one was more seriously hurt.
The assistant manager said
It was pouring down with rain and we just heard a humongous noise, a massive bang.
It was like a cross between thunder and a massive lorry crash.Me and my colleague just looked at each other and ran straight around the coroner and went up onto the road and we saw the vehicle that had gone over and ran straight back to get our colleagues to ring the emergency services.We then went back around the corner and saw that it was a coach and presumed the worse - that it was full of people.
There were just trees everywhere and it was all smashed up.We could see a couple of people moving inside and it was quite quickly assumed that everyone was alive and we got the numbers that it was nine people.
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A rather cloudy start for most, with rain spreading eastwards, clearing to brighter skies later in the day.
The letter was signed by the CBI, British Chambers of Commerce, the EEF, the Institute of Directors and the Federation of Small Businesses.
A spokesperson said Rory Stewart's remarks were in line with the British government’s stated position.