A six-year-old boy who died while in the care of a Lanarkshire orphanage had most likely contracted a fatal infection from playing with a rat, an inquiry has been told.

The Scottish Child Abuse inquiry has heard from Professor Anthony Busuttil, who carried out a review of the death of Sammy Carr.

A witness has previously told the inquiry Sammy died after being beaten by nuns at Smyllum Park in Lanark in 1964.

On Tuesday, Prof Busuttil said the six-year-old most likely died after contracting E Coli from playing with a rat.

Professor Busuttil is a forensic pathologist based at Edinburgh University.

More than 60 residential institutions, including several top private schools, are being investigated by Lady Smith's Inquiry.