Police searching for missing Durham teacher Mark Bushnell have released information about a new possible sighting.
A member of the public has contacted police to report seeing a man fitting Mark's description at around 8am on Monday, March 10, at Crimdon Caravan Park.
The caravan park has been searched but Mr Bushnell is yet to be located.
Chief Inspector Andy Huddleston said: "This is a new possible sighting of Mark and although unconfirmed, we are treating it seriously. We have informed Mark's family of this sighting and are continuing to follow a number of lines of enquiry.
"Specialist teams are concentrating their searches from Crimdon Caravan Park towards the stables at Crimdon Dene.
"Cleveland Police Marine Unit and the Police Air Support are assisting the with the search along the coast. We continue to appeal to the public for assistance in locating Mark.
"Anyone who thinks they may have seen him since 11,30am on Sunday morning should call police on 101."
Chief Inspector Andy Huddleston says the last known sighting of Mr Bushnell was between 1200 and 1230 at Blackhall Rocks.
Martin George, head teacher at Durham School has appealed for missing Mark Bushnell to get in touch and say that he is safe.
Police are continuing their search for missing Durham School deputy head teacher Mark Bushnell.
Searches have resumed around the picnic site at Blackhall Rocks, Peterlee and police say they will hand out leaflets and posters as the search continues.