Police are continuing to search for missing Aberdeen teenager Liam Smith.
The 16-year-old Westhill Academy pupil was seen on CCTV entering Union Square shopping centre before boarding a 202 Stagecoach bus at 1.11pm at Aberdeen Bus Station on Saturday November 17.
Search teams are covering large expanses of challenging terrain in the Crathes area.
The searches will continue and police have thanked the local community for its understanding and support while officers carry out the highly-specialised work.
The central point for search activity is still based around Crathes and officers continue to expand their search in line with specialist advice.
Chief Inspector Martin Mackay said: “The public’s support and assistance has been unprecedented and I know that Liam’s family are very grateful for this, as are we.
“It will be three weeks tomorrow since the 16 year old was last seen I would like to highlight that although we may not post regular updates for the public, police searches are very much ongoing and we are supported by specialist resource which this week has included Braemar Mountain Rescue Team. We continue to keep in contact with Liam’s family and provide them with regular updates.
“If anyone recalls seeing Liam on the day he was last seen (Saturday, 17 November) or since then, and they haven’t already spoken to Police, I would ask that they contact us on 101 quoting ref. no. 1302 of Nov 18.”
Liam is described as white, around 6ft 4ins tall and of slim build. He has short brown hair and walks with a distinctive gait. When he was last seen he was carrying a camouflage North Face rucksack and was wearing Nike Air Max trainers.
He bought Lucozade, Jaffa Cakes and Dairy Milk at Sainsbury’s before he boarded a 202 Stagecoch Bus for Deeside at 1.11pm on Saturday, 17 November. It is believed he got off the bus in the Crathes area.