A 35-year-old man has died on Lewis after being found unconscious outdoors in sub-zero temperatures.
Donald Martin was found in the back garden of his house in Kennedy Terrace, Stornoway, at 1300 GMT on Saturday.
The 35-year-old was in a very serious condition and was taken to the high dependency unit at Western Isles Hospital. He died later that evening.
It is understood Mr Martin was last seen returning home from a Christmas works night out in Stornoway.
A post-mortem examination will be carried out to establish the cause of death.
A report will be submitted to the procurator fiscal.
There do not appear to be any suspicious circumstances.