Taxi firm LTI Vehicles and its Mann and Overton dealership in London has added extra shifts to cope with a major safety recall.

The manufacturer has acknowledged 12 incidences whereby 56-plate TX4 taxis have suffered under-bonnet fires.

The Public Carriages Office has banned all similar TX4 models unless they have had an inspection.To increase the capacity for inspections, LTI and Mann and Overton will now work extra shifts and over a weekend.

Two expert independent fire investigators and engineering consultancy Ricardo have also been contracted to help pinpoint the cause.