A taxi driver has been charged with the murder of 22-year-old Sian O'Callaghan.
Christopher Halliwell, 47, was arrested on Thursday before Miss O'Callaghan's body was found near Uffington, Oxfordshire.
Police said bones recovered during a search in Gloucestershire were believed to be of another woman estimated to be aged between 23 and 30.
Miss O'Callaghan had not been seen since leaving a nightclub in Swindon early on Saturday 19 March.
Mr Halliwell, of Ashbury Avenue, Swindon, was charged with murdering Miss O'Callaghan on Saturday evening and is due to appear before Swindon magistrates on Monday.
Police had been digging on Baxter's Farm at Eastleach in the Gloucestershire Cotswolds 17 miles from where Miss O'Callaghan's body was discovered, since late on Thursday.