It is also under investigation by regulators over "the timeliness and content" of statements it made before it issued a profit warning last year. Sky News, quoting unidentified sources, said Carillion's rescue plan would involve handing back loss-making contracts, revising the terms of others and possibly accepting government financial support if it cannot secure private funding.
That could be a loan on commercial terms, a deal to reprice some contracts, or to allow Carillion to hand back loss-making work to the government, Sky News said.