Shannon's family have been informed
'Officers are becoming increasingly concerned about Ellise and want to make sure that she is safe and well'
A forensic team is currently in the process of formally identifying the body.
'The girls are desperate to have their mummy back home safe with them.'
Officers have tracked down a man who they believe to be a ‘potentially key witness’.
'We have got to get some good news now.'
A huge search operation has commenced with emergency services joined by the mountain rescue team