More details have emerged about the backlog of work capability assessments, which currently stands at 712,000 people.
A report by the BBC quotes the DWP as saying that:
394,000 are new claimants for ESA.
234,000 are existing ESA claimants whose reassessments have been delayed.
84,000 are people still on incapacity benefit who have not yet been moved over to ESA.
The move from IB to ESA was due to have been completed in April of this year.