Miss O'Callaghan, 22, was last seen leaving the Suju nightclub in Swindon alone at about 0250 GMT on Saturday.

BBC: Sian O'Callaghan search officers make taxi appeal

Miss O'Callaghan, 22, disappeared after leaving the town's Suju nightclub on 19 March following a night out with friends.

BBC: Hundreds march to remember Sian O'Callaghan

Miss O'Callaghan's body was found near Uffington, Oxfordshire, following her disappearance after leaving the town's Suju nightclub on 19 March.

BBC: Sian O'Callaghan police identify Eastleach body