THIS last sighting of missing clubber Sian O'Callaghan was released as her boyfriend broke down in tears yesterday while making a desperate plea for help in finding her.

Sian, a 22-year-old PA for a company director, vanished after going for a meal and visiting three nightclubs with pals.

She was tipsy when she was seen on CCTV leaving Swindon's Suju nightspot alone at 2.52am on Saturday to walk half-a-mile home to the flat she shares with boyfriend Kevin Reape, 24.

Police fear she was abducted and driven 12 miles to Savernake Forest – where a mast detected her phone receiving a text message 32 minutes later from Kevin.

His message said simply: "Worried x."

Yesterday, as Sian's mum Elaine, 48, held his arm, quantity surveyor Kevin sobbed while he told a press conference: "It is breaking our hearts not knowing where she is. It's not like her not to come home or contact us for such a long time."

Kevin had gone to Cheltenham races on Friday and was due to play football on Saturday morning so went to bed early.

The couple had exchanged regular texts sealed with a kiss throughout the day. The last message Sian sent was from Suju at 1.15am. It said: "Where are you x."

Police have ruled Kevin out as a suspect. He reported Sian missing at 9.45am on Saturday after contacting her separated parents Elaine and Mick, 51, and friends in case she stayed the night with them.

Sian has a sister Lora, 19, and brother Liam, 24, who said: "Sian means the world to us and we want her to come home. So if anyone has any information, please just come forward."