Jay Slater: expert volunteers join search for missing teenager in Tenerife

Volunteers with experience in rough terrain will go over areas previously covered by police in search for 19-year-old

Volunteers with experience navigating tough terrain are in Tenerife to help the Spanish police in the search for a missing British teenager.

Jay Slater, from Oswaldtwistle in Lancashire, was last heard from on 17 June when he called a friend to say he had no water and only 1% battery left on his phone.