Campaigners are set to gather at a drill site to demonstrate their concern at the work which has commenced there.

Members of Frack Free Surrey will hold an event at the Horse Hill picnic site in Horley on Sunday at 2pm.

The group have said it will be a "peaceful and positive occasion" with cake and entertainment.

They are concerned in particular at the threat of prospecting for shale gas, which requires the controversial process of fracking to extract it.

More information on www.frackfreesurrey.com