"ISG Firms Expected to Enter Administration"

ISG, which builds prisons and police stations, employs 2400 people and is being closely monitored by the Cabinet Office as it heads for administration, Sky News learns.

Thousands of construction industry jobs are at risk as ISG, a construction group that builds prisons and police stations, faces imminent collapse.

Sky News has learnt that Whitehall officials are lining up City advisers to work on contingency plans for ISG, which is expected to formally appoint administrators on Friday.

EY is on standby to handle the insolvency proceedings.