The driver said he didn't even see the Monty truck..Gotta wonder how the hell a lorry managed to run into the back of another up there !
Monty truck was fully freighted (44t) with a load of peat which means it would have been travelling at around 30 mph or slightly under. I suppose he could have been distracted or maybe tired and a bit sleepy. He hit the truck that hard it lifted her of the ground!