A Scots university graduate who was injured in a fatal polar bear attack in Norway is to be flown back to the UK on Monday.

Andy Ruck, 27, who is based in Edinburgh, was one of two leaders of an expedition that was attacked on the remote Norwegian island of Spitsbergen, within the Svalvard archipelago on Friday.

Horatio Chapple, 17, an Eton College student from Salisbury, was mauled to death by a 39-stone bear that entered the campsite early in the morning.

Mr Ruck's colleague Michael Reid and group members Patrick Flinders from Jersey, and Scott Smith were also injured. The group was part of a British Schools Exploring Society expedition to the area.

The society confirmed that teenagers Patrick Flinders and Scott Smith had returned to the UK, while Mr Ruck and his colleague Mr Reid were due to fly back to the UK on Monday evening after being treated in a Norwegian hospital.

A society statement released on Monday read: "The two leaders who were injured will return home on separate medical repatriation flights today and will be admitted to hospital immediately.

"We regret to confirm that their injuries remain severe, although they are both stable."

Mr Ruck, orignally from Brighton, is a travel writer and outdoor expert who was based in Aberdeen, after studying at Aberdeen University, before recently moving to Edinburgh.

All other teenagers on the expedition have since returned to their families in the UK, while an investigation into the incident continues.

Edward Watson, chairman of the society, said on Monday: "Rest assured, we will leave no stone unturned in investigating the tragic incident on August 5 in Svalbard.

"The Norwegian authorities' enquiries are under way. In parallel we have begun to fully review procedures, examine equipment and gather witness statements to understand if anything could have been done to prevent this tragic incident happening.

"The investigation into the incident will be chaired by an independent third party who we will appoint shortly, and we will make our findings public. I am keen that this is a transparent process for the benefit not only of our society but for the exploring community as a whole.

"The Norwegian authorities have asked that we do not comment directly about the incident until their enquiries have concluded, and we will fully respect their wish.

"A young man has lost his life, and four expedition members were injured. We remain committed to supporting those affected through this particularly difficult time in their lives."