Concern for boy missing in freezing weather
Police say they are concerned for a 16-year-old boy who has been missing during freezing temperatures in Lewis.
Aleksandr Benga was last seen near a water wheel in the grounds of Stornoway's Lews Castle at about 08:45 on Monday.
Stornoway coastguard helicopter, a local coastguard team, RNLI's Stornoway lifeboat and police officers have been involved in a search for the teenager.
Police Scotland has asked the public to check any outbuildings they have in case Aleksandr had sought shelter from freezing overnight weather conditions.