A fresh dig has started in a bid to identify a lost medieval palace in the Scottish Borders.

Archaeologists and students from Australia, the USA, Canada and the Netherlands have descended on a field outside the village of Ancrum.

Earlier digs have identified a “substantial” medieval building, without establishing its purpose.

Archaeologist Ian Hill said: “We are now trying to determine exactly what the building was.”

Documents show that the Bishop of Glasgow, William de Bondington, had a summer residence at Ancrum, near Jedburgh, from the 1230s until his death in 1258.

The palace entertained Scots royalty with at least three charters being signed there by Alexander II in 1236.