POLICE investigating a huge fire that gutted a Bradford building say they have exhausted all lines of enquiry.

On March 12 a blaze began in Bell House, a derelict building on Southfield Lane, Great Horton, that soon spread to every floor of the former shop.

Between the beginning of the fire just before 8pm and 1am the next day, when it was finally brought under control, 36 firefighters had been on the scene to tackle the incident.

Shortly after West Yorkshire Fire Service said they believed the fire was deliberate.

The fire has been included on a newly published list of the biggest incidents dealt with by the service in the past 12 months.

When asked for an update on the investigation, a spokesperson for West Yorkshire Police said they had explored all lines of enquiry, but that no suspects have been identified.

They said the investigation has now been deemed complete.