The mountainous landscape where Jay Slater vanished

A new search is under way on Tenerife for missing British teenager Jay Slater following calls from Spanish police for volunteer help.

On Friday the Guardia Civil asked voluntary organisations and members of the public with expertise in difficult conditions to come to northern Tenerife.

The BBC's Nick Garnett reports from the Rural de Teno national park, where Jay went missing on 17 June.

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