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

Miss O'Callaghan disappeared after leaving the Suju nightclub in Swindon a week last Saturday following a night out with friends.

BBC: Murdered Sian O'Callaghan's family feel 'raw pain'

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

BBC: Sian O'Callaghan 'died of head injuries', inquest hears

Many of the estimated crowd of about 300 gathered outside Suju nightclub wearing white t-shirts emblazoned with a picture of Miss O'Callaghan.

BBC: Hundreds march to remember Sian O'Callaghan

Miss O'Callaghan was last seen leaving Suju nightclub in Swindon on Saturday.

BBC: Sian O'Callaghan

Sian O'Callaghan, 22, from Swindon, was last seen leaving Suju alone at about 0250 GMT on Saturday and has not been heard from since.

BBC: Boyfriend's appeal for missing Swindon nightclub woman