1 June 2012 Last updated at 06:35 ET

Lisa Ambler disappearance: Man held on suspicion of murder

Railway arches less than half a mile from where Ms Ambler was sleeping rough have been searched

A man has been arrested on suspicion of murdering a West Yorkshire woman who has been missing for nine years.

Lisa Ambler was 34 when she was last seen in Halifax in August 2003. She was sleeping rough with her boyfriend at the time of her disappearance.

Police said the 38-year-old man was arrested in Halifax on Friday morning and was in custody.

The arrest comes a day after forensic searches of railway arches and a canal basin took place in the town.

Ms Ambler was last seen in Halifax town centre.

Her mother died two years ago not knowing what happened to her daughter. Ms Ambler had two children, now aged in their 20s.

A police spokesman said searches were still taking place and urged anyone with information about Ms Ambler's disappearance to come forward.