Searches have continued over the weekend along the River Tamar for 16 year old Jordan Cobb without success.
Police are asking the public not to carry out their own searching so that resources can be concentrated where they are most needed.
More top news
With 45 youngsters currently in care across the region, a South West charity has begun an appeal urging families to adopt older children.
Plymouth Conservative MP Johnny Mercer says Britain should take in more refugees - despite David Cameron saying this was not the answer.
The manager of a cheese factory in Somerset - due to stop production next month - says he's still hoping a last minute buyer will step in.