In a letter to parents, head teacher Kate Jennings said the children had been offered counselling following the traumatising attack.
She wrote: “Unfortunately on a trip to the south site for class photos, children witnessed a stabbing on Gosport Road.
"Staff reacted quickly and got all of the children back to school within minutes and everyone was safe.
"We will be offering slots for children to speak to a councillor (sic) if this is something that you [parents] would wish."Hope that isn't indicative of the learning to be had at this school...