[Specialist drones have been deployed
to look for a missing runner as police warn
volunteers not to join the search.
Jenny Hall, 23, was last seen leaving
her home in Barracks Farm, County Durham,
in her car just after 3pm on Tuesday.
Durham Constabulary said her last known
location was on the B6278 between Stanhope
and Eggleston - where her red Ford Focus
was parked.
As the major search operation entered
its fourth day on Saturday,
police said officers - along with search
and mountain rescue teams - will be working
in Hamsterley Forest and
the surrounding areas to look
for any trace of her.]