A police forensics tent has been erected at the scene and a cordon has been put in place.

Police Scotland said the girl’s family were being supported by specialist officers and inquiries were continuing.

Karen Youngson said she had picked up her friend from the gym on the estate at about 22:15 on Sunday and had seen a small tent and some camping chairs.

She said: “When I first went up there, I was like my goodness why is there a tent there?

“There were two camping chairs, that’s all I saw, but it was the amount of rubbish, it was unbelievable.”

When she returned from collecting her friend, she said they had to slow down to avoid a baby seagull on the road.

She said: “It was dark, there was no noise coming from the place, it wasn’t like there were lights or anyone sitting outside.”